CN106203659A - One preengages method of hiring a car - Google Patents

Abstract

The invention discloses a car rental reservation method, which relates to the technical field of electric car rental. The car rental reservation method can reserve a car rental and charging through a mobile phone, and can automatically remove a fully charged electric car from a charging pile. It includes an electric car rental system that can reserve a car through a mobile phone. The electric car rental system includes a number of mobile phones installed with an electric car rental APP, a server, a number of charging piles, and a time-sharing car rental device installed on each electric car. , a reservation module and a credit module; the charging pile, the reservation module and the credit module are respectively connected to the server, the time-sharing car rental device is wirelessly connected to the server, and the mobile phone is wirelessly connected to the reservation module.

Description

A method for booking a car rental

technical field

The invention relates to the technical field of electric vehicle rental, in particular to a method for booking a rental car.

Background technique

At present, the electric car rental system generally adopts the manual bookkeeping method to rent a car. During the operation process, each car rental needs manual participation. Electric vehicles with no electricity continue to occupy charging piles, resulting in a waste of charging pile resources. Therefore, design a kind of reservation car rental method that can reserve a car by mobile phone and charge by mobile phone reservation, and can automatically remove the fully charged electric vehicle.

Contents of the invention

The present invention aims to solve the problem that the existing electric car rental system cannot realize mobile phone reservations for car rental, and mobile phone reservations for charging, and the electric car will not automatically move away after it is fully charged, and the fully charged electric car continues to occupy the charging pile, resulting in charging pile resources. Insufficiency of waste, provide a kind of appointment car rental and charging by mobile phone reservation, and allow fully charged electric vehicles to automatically move away from the charging pile of a car rental method.

The above technical problems are solved through the following technical solutions:

A car rental reservation method, including an electric car rental system capable of booking a car rental through a mobile phone, the electric car rental system includes a number of mobile phones installed with an electric car rental APP, a server, a number of charging piles, and is installed on each electric car The time-sharing car rental device, reservation module and credit module; the charging pile, reservation module and credit module are respectively connected to the server, the time-sharing car rental device is wirelessly connected to the server, and the mobile phone is wirelessly connected to the reservation module; the time-sharing car rental device It includes a vehicle control module, a vehicle communication device, an information reading device for identity verification, and a vehicle information platform for vehicle information collection and processing; the vehicle control module, vehicle communication device and information reading device are respectively connected to the vehicle information platform, The time-sharing car rental device is wirelessly connected to the server through the vehicle communication device of the time-sharing car rental device;

The reservation process of the electric car rental system is as follows:

Step ①, start, the user uses the mobile phone to reserve a vehicle by accessing the server through the reservation interface of the WebAPP to reserve a vehicle,

Step ②, the user selects the vehicle,

Step ③. The server prompts the user to reserve time for free on the reservation interface.

Step ④, and display the button option of canceling or billing after the free reservation time is exceeded on the reservation interface. When the user selects the button option of overtime cancellation or billing on the reservation interface, the server judges whether the number of vehicles to be reserved is within More than the number of users who want to reserve a car; if the number of vehicles to be reserved is greater than or equal to the number of users who want to reserve a car, the vehicle to be reserved will be rented directly to the user; if the number of vehicles to be reserved is less than the number of users to reserve a car The number of users, renting a car according to the user's priority level, the higher the user's priority level, the first to rent a car, until the number of vehicles to be reserved is rented out;

Step ⑤, and then prompt the user on the corresponding user's reservation interface whether the result of the car rental reservation is successful or not?

Step ⑥. If the user is prompted on the reservation interface corresponding to the user that the result of car rental reservation is unsuccessful, return to step ②; if the user is prompted on the reservation interface corresponding to the user that the result of car rental reservation is successful, the user is allowed to start renting a car. After the user starts renting a car, he needs to settle the reservation form and generate a car rental order. After the car rental form is generated, the process of making an appointment for car rental ends.

In step ②, after the user selects the vehicle, the user needs to set the start point and the end point, and then the server calculates the mileage of the vehicle based on the vehicle demand and the route selected by the navigation database, and calculates the required mileage based on the mileage of the vehicle. electricity;

The method for estimating the power P required by the vehicle is as follows:

P=SW,

In the formula, S is the actual mileage that the user needs to travel for this trip, which is obtained from the navigation database, and W is the average power consumption per kilometer of the vehicle, which is determined by the parameters of the vehicle itself;

The mileage required for a vehicle trip is corrected by the following steps:

S1. Obtain the congestion index on the road. If the congestion index is 0-2, set the congestion factor to 1; if the congestion index is 3-4, set the congestion factor to 1.02; if the congestion index is 5-6, then set The congestion factor is taken as 1.05; if the congestion index is 7-8, the congestion factor is taken as 1.08; if the congestion index is 9-10, the congestion factor is taken as 1.1;

S2. Obtain the temperature conditions during the driving period. If the temperature is higher than 30 degrees Celsius or lower than 5 degrees Celsius, the temperature factor is taken as 1.1; if the temperature is between 5 degrees Celsius and 30 degrees Celsius, the temperature factor is taken as 1;

S3. Obtain the altitudes of the starting point and the ending point of the user's car rental trip from the navigation database as H1 and H2 respectively, and calculate the altitude factor K, K=1+β×(H2-H1)/S,

In the formula, β is the base energy consumption per unit altitude of the vehicle, which is determined by the parameters of the vehicle itself;

S4. Multiply the actual mileage S that the vehicle needs to travel by the congestion factor, air temperature factor and altitude factor K in turn, and the obtained value is the corrected mileage S' of the vehicle, and calculate the vehicle power P, P required for this vehicle trip. =S'W.

In step ⑥, when the user wants to settle the reservation form after the user starts renting a car, the middle server needs to calculate the reserved car rental fee, and the payment process of the reserved car rental fee is as follows:

Z1. After the user rents a car, the client sends a request command to the server. The request command includes the start time of the car rental and the end time of the car rental; the server calculates whether it is the peak time of the flow of people, and the specific method for judging is that the server uses G=I*(1/T )*(H/A) calculation, where G is the flow coefficient, I is the number of user terminal logins, T is the average charging time of the latest charging of the electric vehicle, H is the average number of historical user terminal logins in the current period, and A is the historical The total average value of the number of user logins. If the flow coefficient is greater than the predetermined value, it is determined that it is currently a peak flow of people;

Z2. The server starts to calculate the car rental time, and calculates the car rental fee based on the car rental time; set the minimum calculation time unit to minutes, and the car rental time to T. If there is a decimal in the car rental time, it will be rounded up. Set the car rental fee per minute to x, then The car rental fee is T*X; the server sets the maximum car rental fee for 1 hour as M, and the server sets the maximum car rental fee for 1 day as N, and decomposes the car rental time T into a part that is greater than 1 day and a part that is less than 1 day. The unit is day, and the cost of the part longer than 1 day is N*T1, and the part less than 1 day is decomposed into part T2 of more than 1 hour and part T3 of less than 1 hour. The unit of T2 is hour, the unit of T3 is minute, T3 The fractional part of is rounded up, the charge for the part greater than 1 hour is M*T2, and the charge for the part less than 1 hour is X*T3. If X*T3 is greater than M, then X*T3 is equal to M. If M*T2+ X*T3 is greater than N, then M*T2+X*T3 is equal to N; if it is currently a peak period of people flow, the car rental fee after the calculation needs to be multiplied by the addition coefficient to get the final car rental fee, the value of the addition coefficient The range is 1.1-1.5;

Z3. The server returns the car rental fee and optional payment methods to the client;

Z4. The user selects the payment method through the user terminal, and then the user terminal returns the request parameters generated by selecting this payment method to the server;

Z5. The server receives the request parameters, and then sends the verification code to the client;

Z6. After receiving the verification code, the user end returns the verification code to the server, and the server performs verification. If the verification is successful, the user end opens the payment software or payment webpage corresponding to the payment method to complete the payment. If the verification is unsuccessful, Then the user terminal prompts the user that the verification fails, terminates the payment process or jumps to step d again.

In this solution, electric vehicles can make reservations for car rental and charging through mobile phones, and allow fully charged electric vehicles to automatically move away from charging piles. Fully charged electric vehicles will not occupy charging piles and will not cause waste of charging pile resources. Good stability and reliability, high degree of intelligent automation.

As preferably, the time-sharing car rental device includes an IC card reader, and an IC card is closely connected to the reading and writing surface of the IC card reader, and the IC card reader is embedded with the IC card and is arranged on the charging device of the electric vehicle. Inside the plug; the charging pile includes a casing with an upper cavity and a lower cavity separated by a partition, and the charging pile also includes a micro-control unit and a pile wireless module M2; a shell through hole is provided on the upper surface of the casing, and the In the upper cavity of the housing, there is a lifting block that can slide up and down driven by the No. 1 telescopic rod of a No. 1 cylinder. The lifting block directly below the through hole of the shell is respectively provided with a block through hole, a card reading hole and a push hole. ; No. 2 air cylinder is arranged on the dividing plate directly below the push-out hole, and the No. 2 telescopic rod of the No. 2 cylinder can expand and contract up and down in the pushing-out hole; a card reader is arranged on the dividing plate directly below the card-reading hole; There is a board through hole on the partition directly below the through hole, and a charging transfer connection seat is fixed in the board through hole, and a power supply transfer interface is provided on the upper surface of the charging transfer connection seat. The lower surface of the seat is provided with a power adapter, and the lower cavity of the housing is provided with a movable adapter that is moved up and down by a No. 3 telescopic rod of a No. The power down transfer interface connected to the connection base is directly matched and connected, and the external power connection terminal of the charging pile is connected to the movable adapter through a conductive wire, and a main power switch is arranged on the conductive wire; the card reader's The control terminal, the control terminal of the main power switch, the control terminal of the No. 1 cylinder, the control terminal of the No. 2 cylinder, the control terminal of the No. 3 cylinder, and the pile wireless module are respectively electrically connected to the micro-control unit; the charging pile also includes a parking platform. The parking platform is equipped with a turntable and No. 1 conveyor belt that can drive vehicles in and out. On the turntable, there is a No. 2 conveyor belt that can drive vehicles to move. The turntable is driven by a No. 1 stepping motor, and the No. 1 conveyor belt is driven by a The No. 2 stepping motor drives the rotation, and the No. 2 conveyor belt is driven by a No. 3 stepping motor. The control end of the No. 1 stepping motor, the control end of the No. 2 stepping motor and the No. 3 stepping motor The control terminals are respectively electrically connected with the micro control unit.

Preferably, the charging pile also includes a mains interface, a normally closed switch, a node 1, a mains monitoring unit, a MOS tube switch, a node 2, a backup power unit, a main power unit, a diode D2, a DC sensor and a public ground GND The control terminal of the normally closed switch is electrically connected to the No. 1 instruction output terminal of the micro control unit, the power input terminal of the normally closed switch is electrically connected to the mains interface, the power output terminal of the normally closed switch, The power input end of the mains power monitoring unit and the power input end of the main power supply unit are respectively electrically connected to the No. 1 contact, and the high level output end of the mains power monitoring unit is electrically connected to the gate G of the MOS transistor switch, The positive voltage output terminal of the standby power supply unit is electrically connected to the source S of the MOS tube switch, the positive power supply output terminal of the main power supply unit is electrically connected to the positive pole of the diode D2, and the current input terminal of the DC sensor Electrically connected to the drain D of the MOS tube switch, the current output terminal of the DC sensor, the negative pole of the diode D2, the positive power supply input terminal of the micro control unit and the fire wire connector of the external power supply connection terminal of the charging pile are respectively electrically connected to the On the No. 2 node, the control terminal of the DC sensor is electrically connected to the No. 2 instruction output terminal of the micro-control unit, the ground terminal of the mains monitoring unit, the ground terminal of the main power supply unit, and the ground terminal of the standby power supply unit , the ground terminal of the micro control unit and the ground terminal of the charging pile are respectively electrically connected to the common ground GND.

Preferably, the backup power supply unit includes a backup power monitoring port, an energy storage battery, a low-dropout linear regulator, a capacitor C6, a capacitor C7, a capacitor C8, a resistor R3, a resistor R4, a resistor R5, and a diode D1; one end of the capacitor C6 and one end of the resistor R3 are respectively electrically connected to the backup power monitoring port; the other end of the resistor R3 and one end of the resistor R4 are respectively electrically connected to one end of the resistor R5; the VIN end of the low dropout linear regulator, the resistor The other end of R4 and one end of capacitor C7 are respectively electrically connected to the positive terminal of the energy storage battery; the OUT end of the low dropout linear regulator and one end of capacitor C8 are respectively electrically connected to the positive pole of diode D1; the diode The negative pole of D1 is electrically connected to the source S of the MOS tube switch, the negative terminal of the energy storage battery, the other end of the capacitor C6, the other end of the resistor R5, the other end of the capacitor C7, and the VSS of the low dropout linear regulator terminal and the other terminal of the capacitor C8 are respectively electrically connected to the common ground GND.

Preferably, the backup power unit further includes a wind-solar hybrid array, the power output terminal of the wind-solar hybrid array is electrically connected to the energy storage battery, the control terminal of the energy storage battery is connected to the micro control unit, and the control terminal of the wind-solar hybrid array is connected to the micro control unit.

Preferably, the charging pile further includes an address encoder M1, a memory M3, a display screen M4 and a GPS locator M5 electrically connected to the micro control unit.

Preferably, the charging pile also includes lighting equipment, environmental monitoring equipment, streaming media advertising equipment, urban wireless communication equipment, cameras and dispatching equipment; the power interface of the lighting equipment, the power interface of the environmental monitoring equipment, and the power supply of the streaming media advertising equipment The interface, the power interface of the urban wireless communication equipment and the power interface of the camera are respectively electrically connected to the corresponding power output interface on the charging pile; The terminal, the control terminal of the lighting equipment, the control terminal of the environmental monitoring equipment, the control terminal of the streaming media advertising equipment, the control terminal of the urban wireless communication equipment, the control terminal of the camera and the dispatching equipment are respectively connected with the micro control unit.

As a preference, the use control process of the adaptive power supply monitoring switching circuit of the electric vehicle rental system is as follows:

Connect the mains interface to the mains, and close the normally closed switch;

When the mains power is not powered off, the mains power flowing into the No. 1 node is divided into two mains transmission lines. One line of mains power supplies power to the micro control unit after passing through the main power supply unit, diode D2 and No. 2 node in turn, and the other way The mains power is continuously monitored by the mains monitoring unit in real time. When the mains monitoring unit continuously monitors the mains in real time, the high-level output terminal of the mains monitoring unit will simultaneously output a high-level signal to the gate G of the MOS tube switch. ; Since the grid G of the MOS tube switch is a high-level signal, the circuit between the source S of the MOS tube switch and the drain D of the MOS tube switch is in a disconnected state, at this time only the commercial power supplies power to the micro control unit , while the backup power supply unit does not supply power to the microcontroller unit;

When the mains power fails, the mains monitoring unit will detect that there is no mains input, and the micro-control unit will also have no mains input; when the mains monitoring unit has no mains input, the high-level output terminal of the mains monitoring unit will There is also no high-level signal output. At this time, the grid G of the MOS tube switch cannot receive a high-level signal, that is, the level signal of the grid G of the MOS tube switch is a low-level signal at this time; When the gate G of the gate is a low-level signal, the circuit between the source S of the MOS tube switch and the drain D of the MOS tube switch is in a conducting state. At this time, the mains does not supply power to the micro control unit, but only the backup power supply The unit supplies power to the microcontroller unit;

Under the control of the micro-control unit, the DC sensor also continuously detects the current on the line between the drain D of the MOS tube switch and the second node in real time. If the drain D of the MOS tube switch detected by the DC sensor is The current on the line between the node and the second node is recorded as the current TA, and the detected current TA is uploaded to the micro control unit;

When the standby power supply unit supplies power to the micro control unit, the current TA detected by the DC sensor is greater than zero at this time, and the DC sensor sends a signal that the detected current TA is greater than zero to the micro control unit, and the micro control unit judges that the current TA is greater than zero at this time. In the state of mains power failure, the micro-control unit makes corresponding data information processing according to the judgment result of mains power failure;

When the mains power comes back after power-off, the mains monitoring unit immediately detects that there is a mains input, and the high-level output terminal of the mains monitoring unit has a high-level signal output. At this time, the gate of the MOS tube switch G receives a high-level signal from the mains monitoring unit, so that the source S of the MOS tube switch and the drain D of the MOS tube switch are in a disconnected state;

When the source S of the MOS tube switch and the drain D of the MOS tube switch are disconnected, the micro control unit is powered by the mains again;

When the utility power supplies power to the micro-control unit, the current TA detected by the DC sensor is equal to zero at this time, and the DC sensor sends a signal that the detected current TA is equal to zero to the micro-control unit, and the micro-control unit judges that it is powered by the utility power at this time state, the micro-control unit makes corresponding data information processing according to the judgment result of the mains power supply;

When it is necessary to detect whether the backup power supply unit has electricity or to detect whether the backup power supply unit can provide power for the micro control unit when the mains is powered off, the detection process is: the micro control unit sends an instruction to the normally closed switch to open the normally closed switch , the normally closed switch is immediately disconnected. If the current TA detected by the DC sensor is greater than zero at this time, it means that the backup power supply unit can provide power for the micro control unit when the mains power fails. If the current TA detected by the DC sensor is If the current TA is equal to zero, it means that the micro control unit is being powered by the backup power supply unit at this time, thus indicating that the backup power supply unit not only has power at this time, but also that the backup power supply unit can provide power for the micro control unit when the mains power fails. providing power;

When there is mains power, the micro control unit is powered by the mains power supply, and when there is no mains power supply, the micro control unit is powered by the backup power supply unit, and the cycle goes on and on, so that the micro control unit is always in a state of power, so that the micro control unit can have power. Process data information that needs to be processed in a timely manner.

Preferably, the scheduled charging control process of the electric vehicle rental system is as follows: the user searches for idle charging piles and idle vehicles and the electric quantity of the corresponding vehicles through the mobile phone, sends an appointment signal requesting an appointment charging at an appointment time to the server, and the server sends an appointment charging signal To designated vehicles and designated charging piles;

The charging pile obtains the power information of the current vehicle and sends it to the server. The server calculates the power according to the current vehicle status and environmental parameters of the electric vehicle and issues a time-sharing charging control command. The charging pile performs time-sharing charging for the current vehicle;

The charging pile is a charging pile that uses peak and valley electricity billing. If the current time is within the valley electricity billing time, the charging pile will charge the electric vehicle;

If the current time is within the peak charging time, the server will operate the charging pile according to the vehicle status information uploaded by the vehicle information platform in the vehicle currently bound to the charging pile. The charging pile charges the electric vehicle, and if it is determined that charging is prohibited, the charging pile stops charging the electric vehicle;

The charging judgment process is as follows:

First, manually or the server assigns a basic power threshold and a basic power coefficient value to each charging pile,

Then the server reads the current time, the on-time of the off-peak power and the power value of the energy storage battery of the current vehicle, and the server calculates the difference between the current time and the on-time of the off-peak power to obtain the time difference;

When the value obtained by dividing the basic power coefficient value by the time difference value plus the current vehicle's energy storage battery power value is greater than or equal to the basic power threshold, it is determined that charging is prohibited.

When the value obtained by dividing the basic power coefficient value by the time difference plus the current vehicle's energy storage battery power value is less than the basic power threshold, it is determined that charging is required;

The average number of car borrowings on the corresponding date in the last statistical cycle of the charging pile is multiplied by a given percentage coefficient to obtain the power correction value. The basic power threshold is obtained by adding the basic power value to the power correction value. The basic power value is a unified value; If two electric vehicles are waiting to be charged at the charging pile, the current power values of adjacent vehicles will be compared, and the server will charge the vehicles that need to be charged in order from high to low.

Preferably, the free reservation time for the user is obtained by the basic free reservation time + level converted free reservation time; the level converted free reservation time = user level ÷ 60 and then rounded to get, user level = car rental time + consumption amount + car rental mileage + Car rental times - driving violation records x 10.

The present invention can achieve following effect:

The electric car of the car rental reservation method of the present invention can reserve a car rental and charging through a mobile phone, and the fully charged electric car can be automatically removed from the charging pile. Waste of resources, good stability and reliability, high degree of intelligent automation.

Description of drawings

Fig. 1 is a schematic diagram of a connection structure in a use state when the charging plug of the electric vehicle is not inserted into the charging pile according to the embodiment of the present invention.

Fig. 2 is a schematic diagram of a connection structure in a use state when the charging plug of the electric vehicle has been inserted into the charging pile according to the embodiment of the present invention.

Fig. 3 is a schematic diagram of a connection structure in a use state when the charging plug of the electric vehicle according to the embodiment of the present invention is pushed up by the No. 2 telescopic rod of the No. 2 cylinder on the charging pile.

Fig. 4 is a schematic diagram of the connection structure of an electric vehicle in use when it is parked on the turntable of the parking platform and charging according to the embodiment of the present invention.

Fig. 5 is a schematic diagram of a connection structure in a use state when the electric vehicle automatically removes the charging pile after the electric vehicle is fully charged according to the embodiment of the present invention.

Fig. 6 is a schematic block diagram of a circuit principle connection structure at a charging pile according to an embodiment of the present invention.

FIG. 7 is a schematic block diagram of an overall circuit principle connection structure according to an embodiment of the present invention.

Fig. 8 is a schematic diagram of a flow chart of car rental reservation according to an embodiment of the present invention.

detailed description

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Embodiment, a kind of car rental reservation method, see Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8 shown, comprise the electric car rental car system that can reserve car by mobile phone, described The electric car rental system includes several mobile phones 90 installed with electric car rental APP, a server 91, several charging piles 56, a time-sharing car rental device 92 equipped on each electric car, a reservation module 93 and a credit card for recording user credit. Module 94; the charging pile, reservation module and credit module are respectively connected to the server, the time-sharing car rental device is wirelessly connected to the server, and the mobile phone is wirelessly connected to the reservation module.

The time-sharing car rental device comprises a vehicle control module 95, a vehicle communication device 96, an information read-in device 97 for identity verification and a vehicle-mounted information platform 98 for vehicle information collection and processing; the vehicle control module, the vehicle communication device and information read-in The devices are respectively connected with the vehicle-mounted information platform, and the time-sharing car rental device is wirelessly connected with the server through the vehicle communication device of the time-sharing car rental device.

The reservation process of the electric car rental system is as follows:

Step ①, start, the user uses the mobile phone to reserve a vehicle by accessing the server through the reservation interface of the WebAPP to reserve a vehicle,

Step ②, the user selects the vehicle,

Step ③. The server prompts the user to reserve time for free on the reservation interface.

Step ④, and display the button option of canceling or billing after the free reservation time is exceeded on the reservation interface. When the user selects the button option of overtime cancellation or billing on the reservation interface, the server judges whether the number of vehicles to be reserved is within More than the number of users who want to reserve a car; if the number of vehicles to be reserved is greater than or equal to the number of users who want to reserve a car, the vehicle to be reserved will be rented directly to the user; if the number of vehicles to be reserved is less than the number of users to reserve a car The number of users, renting a car according to the user's priority level, the higher the user's priority level, the first to rent a car, until the number of vehicles to be reserved is rented out;

Step ⑤, and then prompt the user on the corresponding user's reservation interface whether the result of the car rental reservation is successful or not?

Step ⑥. If the user is prompted on the reservation interface corresponding to the user that the result of car rental reservation is unsuccessful, return to step ②; if the user is prompted on the reservation interface corresponding to the user that the result of car rental reservation is successful, the user is allowed to start renting a car. After the user starts renting a car, he needs to settle the reservation form and generate a car rental order. After the car rental form is generated, the process of making an appointment for car rental ends.

The free reservation time for users is obtained by the basic free reservation time + level converted free reservation time; level converted free reservation time = user level ÷ 60 and then rounded up, user level = car rental time + consumption amount + car rental mileage + car rental times - The number of driving violation records × 10.

In step ②, after the user selects the vehicle, the user needs to set the start point and the end point, and then the server calculates the mileage of the vehicle based on the vehicle demand and the route selected by the navigation database, and calculates the required mileage based on the mileage of the vehicle. electricity;

The method for estimating the power P required by the vehicle is as follows:

P=SW,

In the formula, S is the actual mileage that the user needs to travel for this trip, which is obtained from the navigation database, and W is the average power consumption per kilometer of the vehicle, which is determined by the parameters of the vehicle itself;

The mileage required for a vehicle trip is corrected by the following steps:

S1. Obtain the congestion index on the road. If the congestion index is 0-2, set the congestion factor to 1; if the congestion index is 3-4, set the congestion factor to 1.02; if the congestion index is 5-6, then set The congestion factor is taken as 1.05; if the congestion index is 7-8, the congestion factor is taken as 1.08; if the congestion index is 9-10, the congestion factor is taken as 1.1;

S2. Obtain the temperature conditions during the driving period. If the temperature is higher than 30 degrees Celsius or lower than 5 degrees Celsius, the temperature factor is taken as 1.1; if the temperature is between 5 degrees Celsius and 30 degrees Celsius, the temperature factor is taken as 1;

S3. Obtain the altitudes of the starting point and the ending point of the user's car rental trip from the navigation database as H1 and H2 respectively, and calculate the altitude factor K, K=1+β×(H2-H1)/S,

In the formula, β is the base energy consumption per unit altitude of the vehicle, which is determined by the parameters of the vehicle itself;

S4. Multiply the actual mileage S that the vehicle needs to travel by the congestion factor, air temperature factor and altitude factor K in turn, and the obtained value is the corrected mileage S' of the vehicle, and calculate the vehicle power P, P required for this vehicle trip. =S'W.

In step ⑥, when the user wants to settle the reservation form after the user starts renting a car, the middle server needs to calculate the reserved car rental fee, and the payment process of the reserved car rental fee is as follows:

Z1. After the user rents a car, the client sends a request command to the server. The request command includes the start time of the car rental and the end time of the car rental; the server calculates whether it is the peak time of the flow of people, and the specific method for judging is that the server uses G=I*(1/T )*(H/A) calculation, where G is the flow coefficient, I is the number of user terminal logins, T is the average charging time of the latest charging of the electric vehicle, H is the average number of historical user terminal logins in the current period, and A is the historical The total average value of the number of user logins. If the flow coefficient is greater than the predetermined value, it is determined that it is currently a peak flow of people;

Z2. The server starts to calculate the car rental time, and calculates the car rental fee based on the car rental time; set the minimum calculation time unit to minutes, and the car rental time to T. If there is a decimal in the car rental time, it will be rounded up. Set the car rental fee per minute to x, then The car rental fee is T*X; the server sets the maximum car rental fee for 1 hour as M, and the server sets the maximum car rental fee for 1 day as N, and decomposes the car rental time T into a part that is greater than 1 day and a part that is less than 1 day. The unit is day, and the cost of the part longer than 1 day is N*T1, and the part less than 1 day is decomposed into part T2 of more than 1 hour and part T3 of less than 1 hour. The unit of T2 is hour, the unit of T3 is minute, T3 The fractional part of is rounded up, the charge for the part greater than 1 hour is M*T2, and the charge for the part less than 1 hour is X*T3. If X*T3 is greater than M, then X*T3 is equal to M. If M*T2+ X*T3 is greater than N, then M*T2+X*T3 is equal to N; if it is currently a peak period of people flow, the car rental fee after the calculation needs to be multiplied by the addition coefficient to get the final car rental fee, the value of the addition coefficient The range is 1.1-1.5;

Z3. The server returns the car rental fee and optional payment methods to the client;

Z4. The user selects the payment method through the user terminal, and then the user terminal returns the request parameters generated by selecting this payment method to the server;

Z5. The server receives the request parameters, and then sends the verification code to the client;

Z6. After receiving the verification code, the user end returns the verification code to the server, and the server performs verification. If the verification is successful, the user end opens the payment software or payment webpage corresponding to the payment method to complete the payment. If the verification is unsuccessful, Then the user terminal prompts the user that the verification fails, terminates the payment process or jumps to step d again.

The time-sharing car rental device also includes an additional module 90 for providing personalized requirements for users, and the additional module is connected with the vehicle information platform.

The time-sharing car rental device also includes a road condition module 100 for recording road condition information, and the road condition module is connected with the vehicle information platform.

The time-sharing car rental device includes an IC card reader-writer 79, and an IC card 89 is closely connected to the read-write surface of the IC card reader-writer, and the IC card reader-writer and the IC card are embedded in the charging plug of the electric vehicle. 78; the charging pile 56 includes a casing 60 with an upper cavity 58 and a lower cavity 59 separated by a partition 57, and the charging pile also includes a micro-control unit 19 and a pile wireless module M2; Shell through hole 61 is arranged, and in the upper chamber of housing, be provided with the lifting block 63 that can slide up and down driven by No. 1 telescopic rod 62 of a No. 1 air cylinder 47, on the lifting block directly below the shell through hole, be respectively provided with Block through hole 64, card reading hole 65 and pushing out hole 66; No. two cylinders 48 are provided on the dividing plate directly below pushing out holes, and the No. two telescoping rods 75 of No. two cylinders can stretch up and down in pushing out holes; A card reader 88 is provided on the dividing plate directly below the hole; a plate through hole 67 is arranged on the dividing plate directly below the block through hole, and a charging adapter connecting seat 68 is fixed in the plate through hole. The upper surface of the connection seat is provided with a power supply transfer interface 69, and the lower surface of the charging adapter connection seat is provided with a power supply transfer interface 70. The No. telescopic rod 71 drives the movable adapter 72 that moves up and down, and the movable adapter can be directly matched with the power down transfer interface of the charging adapter connection seat, and the external power connection terminal 27 of the charging pile is connected through a conductive wire 73. On the movable adapter, and on the conductive line, be provided with a main power switch 74; the control end 46 of the card reader, the control end 28 of the main power switch, the control end 29 of the No. 1 cylinder, the control end 30 of the No. 2 cylinder, The control terminal 31 of the No. 3 cylinder and the pile wireless module 32 are respectively electrically connected to the micro control unit.

A vertical guide hole is also provided on the lifting block, and a guide rod 76 is slidably arranged in the guide hole. On the top wall, an extruding spring 77 is provided on the guide rod between the lifting block and the dividing plate.

The charging pile also includes a mains interface 10, a normally closed switch 11, a node 12, a mains monitoring unit 13, a MOS tube switch 17, a node 18, a backup power unit 20, a main power unit 24, a diode D2, a DC The sensor 25 and the common ground GND; the control terminal a3 of the normally closed switch is electrically connected to the No. The output terminal a2, the power input terminal of the mains monitoring unit and the power input terminal of the main power supply unit are respectively electrically connected to the No. 1 contact, and the high level output terminal of the mains monitoring unit is electrically connected to the grid G of the MOS tube switch Above, the positive voltage output terminal of the standby power supply unit is electrically connected to the source S of the MOS tube switch, the positive power supply output terminal of the main power supply unit is electrically connected to the positive pole of the diode D2, and the current input terminal b1 of the DC sensor is electrically connected to the On the drain D of the MOS tube switch, the current output terminal b2 of the DC sensor, the negative pole of the diode D2, the positive power supply input terminal e1 of the micro-control unit, and the live wire connector 27 of the external power connection terminal of the charging pile are respectively electrically connected to the No. On the node, the control terminal b3 of the DC sensor is electrically connected to the second command output terminal e2 of the micro-control unit, the ground terminal of the mains monitoring unit, the ground terminal of the main power supply unit, the ground terminal of the backup power supply unit, the micro-control unit The ground terminal of the charging pile and the ground terminal of the charging pile are respectively electrically connected to the common ground GND.

Mains monitoring unit includes step-down transformer 14, rectifier 15, power monitoring chip 16, capacitor C1, capacitor C2, capacitor C3, capacitor C4, capacitor C5, resistor R1 and resistor R2; the input terminal of step-down transformer is electrically connected to No. 1 On the node, the output end of the step-down transformer is electrically connected to the input end of the rectifier, the output end of the rectifier, one end of capacitor C1 and one end of capacitor C2 are respectively electrically connected to the VDD end of the power monitoring chip, and the OUT end of the power monitoring chip Electrically connected to one end of the resistor R1, the other end of the resistor R1, one end of the capacitor C3, one end of the capacitor C4, one end of the capacitor C5 and one end of the resistor R2 are respectively electrically connected to the gate G of the MOS transistor switch, and the capacitor C1 The other end, the other end of capacitor C2, the NC end of the power monitoring chip, the VSS end of the power monitoring chip, the DS end of the power monitoring chip, the other end of capacitor C3, the other end of capacitor C4, the other end of capacitor C5 and resistor R2 The other ends of are respectively electrically connected to the common ground GND.

The backup power supply unit includes a backup power monitoring port 21, an energy storage battery 22, a low dropout linear voltage regulator 23, a capacitor C6, a capacitor C7, a capacitor C8, a resistor R3, a resistor R4, a resistor R5 and a diode D1; one end of the capacitor C6 and a resistor One end of R3 is electrically connected to the backup power monitoring port; the other end of resistor R3 and one end of resistor R4 are respectively electrically connected to one end of resistor R5; the VIN end of the low dropout linear regulator, the other end of resistor R4 and the capacitor One end of C7 is electrically connected to the positive end of the energy storage battery; the OUT end of the low dropout linear regulator and one end of capacitor C8 are respectively electrically connected to the positive end of the diode D1; the negative end of the diode D1 is electrically connected to the MOS tube switch On the source S, the negative end of the energy storage battery, the other end of the capacitor C6, the other end of the resistor R5, the other end of the capacitor C7, the VSS end of the low-dropout linear regulator, and the other end of the capacitor C8 are electrically connected to the common Ground GND.

The backup power unit also includes a wind-solar hybrid array 26, the power output terminal of the wind-solar hybrid array is electrically connected to the energy storage battery, the control terminal 33 of the energy storage battery is connected to the micro control unit, and the control terminal 34 of the wind-solar hybrid array is connected to the micro control unit.

The normally closed switch is a normally closed relay switch, and the control terminal circuit of the relay switch is powered by the mains, and the power on and off control terminal of the control terminal circuit of the relay switch is electrically connected to the No. 1 instruction output terminal of the micro control unit.

The charging pile also includes an address encoder M1, a memory M3, a display screen M4 and a GPS locator M5 electrically connected to the micro control unit.

The charging pile also includes lighting equipment 50, environmental monitoring equipment 51, streaming media advertising equipment 52, urban wireless communication equipment 53, camera 54 and dispatching equipment 55; The power supply interface, the power supply interface of the urban wireless communication equipment and the power supply interface of the camera are respectively electrically connected with the corresponding power output interface on the charging pile; The control terminal 37, the control terminal 38 of lighting equipment, the control terminal 39 of environmental monitoring equipment, the control terminal 40 of streaming media advertising equipment, the control terminal 41 of urban wireless communication equipment, the control terminal 42 of camera and the dispatching equipment 43 communicate with the micro-controller respectively unit connection.

The charging pile also includes a parking platform 84. On the parking platform, a turntable 85 and a No. 1 conveyor belt 86 that can drive the vehicle in and out are provided. On the turntable, there is a No. 2 conveyor belt 101 that can drive the vehicle to move. The stepper motor drives the rotation, the No. 1 conveyor belt is driven by a No. 2 stepper motor, and the No. 2 conveyor belt is driven by a No. 3 stepper motor. The control terminal 44 of the No. 1 stepper motor, the No. 2 The control terminal 45 of the stepping motor and the control terminal 102 of the third stepping motor are respectively electrically connected to the micro control unit.

The use control process of the adaptive power supply monitoring switching circuit of the electric vehicle rental system is as follows:

Connect the mains interface to the mains, and close the normally closed switch;

When the mains power is not powered off, the mains power flowing into the No. 1 node is divided into two mains transmission lines. One line of mains power supplies power to the micro control unit after passing through the main power supply unit, diode D2 and No. 2 node in turn, and the other way The mains power is continuously monitored by the mains monitoring unit in real time. When the mains monitoring unit continuously monitors the mains in real time, the high-level output terminal of the mains monitoring unit will simultaneously output a high-level signal to the gate G of the MOS tube switch. ; Since the grid G of the MOS tube switch is a high-level signal, the circuit between the source S of the MOS tube switch and the drain D of the MOS tube switch is in a disconnected state, at this time only the commercial power supplies power to the micro control unit , while the backup power supply unit does not supply power to the microcontroller unit;

When the mains power fails, the mains monitoring unit will detect that there is no mains input, and the micro-control unit will also have no mains input; when the mains monitoring unit has no mains input, the high-level output terminal of the mains monitoring unit will There is also no high-level signal output. At this time, the grid G of the MOS tube switch cannot receive a high-level signal, that is, the level signal of the grid G of the MOS tube switch is a low-level signal at this time; When the gate G of the gate is a low-level signal, the circuit between the source S of the MOS tube switch and the drain D of the MOS tube switch is in a conducting state. At this time, the mains does not supply power to the micro control unit, but only the backup power supply The unit supplies power to the microcontroller unit;

Under the control of the micro-control unit, the DC sensor also continuously detects the current on the line between the drain D of the MOS tube switch and the second node in real time. If the drain D of the MOS tube switch detected by the DC sensor is The current on the line between the node and the second node is recorded as the current TA, and the detected current TA is uploaded to the micro control unit;

When the standby power supply unit supplies power to the micro control unit, the current TA detected by the DC sensor is greater than zero at this time, and the DC sensor sends a signal that the detected current TA is greater than zero to the micro control unit, and the micro control unit judges that the current TA is greater than zero at this time. In the state of mains power failure, the micro-control unit makes corresponding data information processing according to the judgment result of mains power failure;

When the mains power comes back after power-off, the mains monitoring unit immediately detects that there is a mains input, and the high-level output terminal of the mains monitoring unit has a high-level signal output. At this time, the gate of the MOS tube switch G receives a high-level signal from the mains monitoring unit, so that the source S of the MOS tube switch and the drain D of the MOS tube switch are in a disconnected state;

When the source S of the MOS tube switch and the drain D of the MOS tube switch are disconnected, the micro control unit is powered by the mains again;

When the utility power supplies power to the micro-control unit, the current TA detected by the DC sensor is equal to zero at this time, and the DC sensor sends a signal that the detected current TA is equal to zero to the micro-control unit, and the micro-control unit judges that it is powered by the utility power at this time state, the micro-control unit makes corresponding data information processing according to the judgment result of the mains power supply;

When it is necessary to detect whether the backup power supply unit has electricity or to detect whether the backup power supply unit can provide power for the micro control unit when the mains is powered off, the detection process is: the micro control unit sends an instruction to the normally closed switch to open the normally closed switch , the normally closed switch is immediately disconnected. If the current TA detected by the DC sensor is greater than zero at this time, it means that the backup power supply unit can provide power for the micro control unit when the mains power fails. If the current TA detected by the DC sensor is If the current TA is equal to zero, it means that the micro control unit is being powered by the backup power supply unit at this time, thus indicating that the backup power supply unit not only has power at this time, but also that the backup power supply unit can provide power for the micro control unit when the mains power fails. providing power;

When there is mains power, the micro control unit is powered by the mains power supply, and when there is no mains power supply, the micro control unit is powered by the backup power supply unit, and the cycle goes on and on, so that the micro control unit is always in a state of power, so that the micro control unit can have power. Process data information that needs to be processed in a timely manner.

The reservation charging control process of the electric car rental system is as follows: the user searches for free charging piles and free vehicles and the power of the corresponding vehicles through the mobile phone, sends a reservation signal for reservation time to the server, and the server sends a reservation charging signal to the designated vehicle and designated charging piles;

The charging pile obtains the power information of the current vehicle and sends it to the server. The server calculates the power according to the current vehicle status and environmental parameters of the electric vehicle and issues a time-sharing charging control command. The charging pile performs time-sharing charging for the current vehicle;

The charging pile is a charging pile that uses peak and valley electricity billing. If the current time is within the valley electricity billing time, the charging pile will charge the electric vehicle;

If the current time is within the peak charging time, the server will operate the charging pile according to the vehicle status information uploaded by the vehicle information platform in the vehicle currently bound to the charging pile. The charging pile charges the electric vehicle, and if it is determined that charging is prohibited, the charging pile stops charging the electric vehicle;

The charging judgment process is as follows:

First, manually or the server assigns a basic power threshold and a basic power coefficient value to each charging pile,

Then the server reads the current time, the on-time of the off-peak power and the power value of the energy storage battery of the current vehicle, and the server calculates the difference between the current time and the on-time of the off-peak power to obtain the time difference;

When the value obtained by dividing the basic power coefficient value by the time difference value plus the current vehicle's energy storage battery power value is greater than or equal to the basic power threshold, it is determined that charging is prohibited.

When the value obtained by dividing the basic power coefficient value by the time difference plus the current vehicle's energy storage battery power value is less than the basic power threshold, it is determined that charging is required;

The average number of car borrowings on the corresponding date in the last statistical cycle of the charging pile is multiplied by a given percentage coefficient to obtain the power correction value. The basic power threshold is obtained by adding the basic power value to the power correction value. The basic power value is a unified value; If two electric vehicles are waiting to be charged at the charging pile, the current power values of adjacent vehicles will be compared, and the server will charge the vehicles that need to be charged in order from high to low.

The specific example is as follows. If today is Saturday and the statistical period is one week, then if the number of car borrowings was 5 last Saturday, then if the number of car borrowings was 7 last Saturday, etc., the average calculation of multiple statistical periods for the next week 6. The number of borrowed cars at this location is 5 times, the basic power value is 50% of the total power, and the percentage coefficient is 2%, then it can be obtained that the basic power threshold is 50%+2%*5=60%, which is the total 60% of the electricity, if the current time is 9 o'clock, and the valley power billing time is 10 o'clock, then the current time difference is 60 minutes. The base power coefficient value is set to 300%, then, 300%/60=5%, if the current battery power value of the vehicle is 50% of the total power, then 50%+5%=55%, which is less than 60% of the basic power Threshold, it is determined that charging is required, and the charging pile will charge the electric vehicle.

If the battery power value of the current vehicle is 56% of the total power, then the value obtained after dividing the basic power coefficient value by the time difference plus the battery power value of the current vehicle is 56%+5%=61%, which is greater than 60% The threshold of the basic electric quantity is determined to be charged, and the charging pile will charge the electric vehicle.

Similarly, if calculated on average over multiple statistical periods, the number of borrowed cars at this location on Saturdays is small, the basic power threshold is low, and it is even more difficult to reach the charging threshold.

If there are several vehicles parked within 200 meters, the current power values of adjacent vehicles will be compared, and the central server will start charging the vehicles determined to need to be charged from high to low.

The car return control process of the electric car rental system is as follows: when the user parks the car, the vehicle information platform displays the selection information. To return the car, the user selects the command to return the car on the vehicle information platform and swipe the card at the charging pile, the charging pile is bound to the vehicle, and the user returns the car.

The on-site car rental control process of the electric car rental system is as follows: the information reading device reads the card, and the on-board information platform judges the current vehicle status. If the current vehicle status does not meet the opening conditions, the vehicle control module refuses to open the door, and the car rental ends; The opening condition is that the vehicle control module unlocks the door, and the user enters the vehicle. At the same time, the vehicle information platform transmits the current card reading data to the server, and the server returns the user account information to the vehicle communication device. If the server returns the user account information, the balance is insufficient, and the vehicle control The module turns off the power supply of the vehicle, and the car rental ends after being prompted by the on-board information platform; if the server returns the user account information with sufficient balance, the vehicle control module turns on the power supply of the vehicle, and the user rents a car on site.

Under the control of the micro-control unit, when the electric vehicle is fully charged, the micro-control unit sends a command to the No. 1 cylinder to extend the No. 1 telescopic rod, and the No. 1 telescopic rod of the No. 1 cylinder is stretched to push the lifting block to move upward. After the lifting block moves upwards, it drives the charging plug of the electric vehicle to move upwards, and after the charging plug of the electric vehicle moves upwards, the charging plug of the electric vehicle is disconnected from the power supply interface 69 of the charging adapter connection seat. Then, the micro-control unit sends an instruction to the No. 2 cylinder to extend the No. 2 telescopic rod. After the No. 2 telescopic rod of the No. 2 cylinder is stretched, it pushes the lifting block to move upward. After the lifting block moves upward, it drives the charging plug of the electric vehicle upward. After moving, the charging plug of the electric car moves upwards so that the charging plug of the electric car is disconnected from the power supply transfer interface 69 of the charging adapter connection seat. Then, the micro-control unit sends the command of the No. 3 telescopic rod extension to the No. 3 cylinder, and the charging plug of the electric vehicle is ejected from the shell through hole of the housing after the No. 3 telescopic rod of the No. 3 cylinder is stretched. Then, the micro-control unit sends a starting command to the No. 1 stepping motor, and the No. 1 stepping motor starts to drive the turntable to rotate, and the turntable turns to drive the electric vehicle parked on the turntable to rotate. When the front of the electric vehicle is facing the No. 1 conveyor belt, the micro-control unit sends a start command to the No. 3 stepping motor on the rotating disk, and the No. 3 stepping motor starts to drive the No. 2 conveyor belt forward. At the same time, the micro-control unit Send a start command to the No. 2 stepping motor, and the No. 2 stepping motor starts to drive the No. 1 conveyor belt forward, thereby removing the fully charged electric vehicle from the charging pile.

Before the user wants to use the electric car rental service, the user needs to bind the mobile phone through the user information. When it is necessary to rent a car or rent a charging pile for charging, the user uses the mobile phone to upload the required rental car or charging pile information to the server through the reservation module, and the server retrieves the user's credit information through the credit module. If the user is a trusted user , agree to rent a car or rent a charging pile for the customer to use, if the user is an untrustworthy user, then do not agree to rent a car or rent a charging pile for the customer to use. When the server confirms that the user is a trusted user, the server immediately sends the car rental information required by the user to the corresponding electric vehicle and the corresponding charging pile, and the user can control the corresponding electric vehicle and the corresponding charging pile until the end of the rental time .

When charging is needed, the customer sends taxi information to the server through the mobile phone as needed. The car rental information includes which electric vehicle needs to be charged, how much power needs to be charged, which charging pile needs to be used for charging, and when it needs to be charged.

When charging, the pin 83 of the charging plug 78 of the electric vehicle is inserted into the power supply transfer interface 69 of the charging transfer connection seat 68. At this time, the card reader 88 reads the IC card arranged in the charging plug 78 information. The information on the IC card is written by the IC card reader/writer 79 arranged in the charging plug. The plug seat of the charging plug includes a lower plug seat 80 and an upper plug seat 82 connected together, the plug wire 81 of the charging plug is introduced from the upper plug seat 82, and the IC card reader 79 is embedded and arranged in the lower plug seat 80. The upper end of 83 is also fixed in the lower socket 80.

The road condition module records the road condition information of the operating line of the electric vehicle, and the road condition information includes the electricity consumption per kilometer corresponding to the electric vehicle on the same line at different time periods. When the user uses the car, he needs to input the start point and the end point. The road condition module calculates the total power consumption of the user from the start point to the end point according to the route the user takes and the average power consumption per kilometer of the car on the route. If the power is sufficient, the customer is allowed to use the car air conditioner. If the power is not sufficient, the switching power supply of the car air conditioner is cut off through the vehicle control module, so that the user is not allowed to use the car air conditioner when the power is not sufficient.

The electric vehicle is wirelessly connected to the server through the vehicle communication device of the time-sharing car rental device on the vehicle. The additional module is used to record the additional information of individual needs of each car user. The additional information includes whether the user needs to use the car air conditioner, whether to use the car radio, whether to use the car stereo, whether to use the car navigation, and whether the user needs to use the car when renting a car. Information about the routes frequently traveled from the starting point to the destination, etc., so that when the user rents the car again, System Home calls the user’s additional information, and then calculates whether the power is sufficient for the user. If the power is sufficient for the user, it can be agreed When renting a car to the customer, if the electricity does not meet the needs of the user, it is necessary to remind the user not to rent the electric car or to use the electric car after continuing to charge, which greatly improves the reliability of the user's car and will not As a result, the electric vehicle has no electricity during the use of the user, which reduces the user's worry about using the car and improves the reliability of the user's car, so that the customer can bind the electric car regularly for a long time, especially suitable for relatively fixed commuting routes users use.

The electric car in this example can make reservations for car rental and charging through mobile phones, and the fully charged electric car can automatically move away from the charging pile. The fully charged electric car will not occupy the charging pile and will not cause waste of charging pile resources. , good stability and reliability, high degree of intelligent automation.

The embodiments of the present invention are described above with reference to the accompanying drawings, but the implementation is not limited by the above embodiments, and those skilled in the art can make various changes or modifications within the scope of the appended claims.

Claims (10)

1. A method for reserving a car rental, characterized in that it includes an electric car rental system capable of reserving a car rental through a mobile phone, the electric car rental system includes several mobile phones installed with an electric car rental app, a server, several charging piles, The time-sharing car rental device, reservation module and credit module on each electric vehicle; the charging pile, reservation module and credit module are respectively connected to the server, the time-sharing car rental device is wirelessly connected to the server, and the mobile phone is wirelessly connected to the reservation module; the time-sharing car rental device It includes a vehicle control module, a vehicle communication device, an information reading device for identity verification, and a vehicle information platform for vehicle information collection and processing; the vehicle control module, vehicle communication device and information reading device are respectively connected to the vehicle information platform, The time-sharing car rental device is wirelessly connected to the server through the vehicle communication device of the time-sharing car rental device; The reservation process of the electric car rental system is as follows: ①. At the beginning, the user uses the mobile phone to reserve the vehicle through the reservation interface of the WebAPP to access the server to reserve the vehicle. ②. The user selects the vehicle, ③. The server prompts the user to reserve time for free on the reservation interface. ④. On the reservation interface, the button option of canceling or billing after the free reservation time is displayed. When the user selects the button option of overtime cancellation or billing on the reservation interface, the server judges whether the number of vehicles to be reserved is within the limit. More than the number of users who reserve a car; if the number of vehicles to be reserved is greater than or equal to the number of users who want to reserve a car, the vehicle to be reserved will be rented directly to the user; if the number of vehicles to be reserved is less than the number of users who want to reserve a car The number of cars is rented according to the user's priority level. The higher the user's priority level, the more the car will be rented first, until the number of cars to be reserved is rented out; ⑤. Then, on the reservation interface corresponding to the user, prompt the user whether the result of the car rental reservation is successful or not? ⑥. If the user is prompted on the reservation interface corresponding to the user that the result of car rental reservation is unsuccessful, return to step ②; if the user is prompted on the reservation interface corresponding to the user that the result of car rental reservation has been successful, the user is allowed to start renting a car. After starting to rent a car, it is necessary to settle the reservation bill and generate a car rental bill. After the car rental bill is generated, the car rental reservation process ends. 2. A kind of reserved car rental method according to claim 1 is characterized in that, the time-sharing car rental device comprises an IC card reader (79), and an IC card reader is closely connected to the read-write surface of the IC card reader. card (89), and the IC card reader is embedded with the IC card in the charging plug (78) of the electric vehicle; the charging pile (56) includes a partition (57) with an upper cavity (58) and The housing (60) of the lower cavity (59), the charging pile also includes a micro-control unit (19) and a pile wireless module M2; a shell through hole (61) is provided on the upper surface of the housing, and a shell through hole (61) is provided on the upper surface of the housing. The cavity is provided with a lifting block (63) that can slide up and down driven by the No. 1 telescopic rod (62) of a No. 1 cylinder (47), and a block through hole (64) is respectively provided on the lifting block directly below the shell through hole. ), the card reading hole (65) and the ejection hole (66); the partition plate directly below the ejection hole is provided with No. two cylinders (48), and the No. two telescopic rods (75) of the No. two cylinders can be pushed out in the ejection holes Up and down expansion and contraction; a card reader (88) is provided on the dividing plate directly below the card reading hole; a plate through hole (67) is arranged on the dividing plate directly below the block through hole, and a charging switch is fixedly arranged in the plate through hole. Connect the connection seat (68), the upper surface of the charging transfer connection seat is provided with a power supply transfer interface (69), and the lower surface of the charging transfer connection seat is provided with a power supply transfer interface (70). In the lower cavity of a No. 3 cylinder (49) the No. 3 telescopic rod (71) drives the movable adapter (72) to move up and down, and the movable adapter can be connected to the power supply of the charging adapter connection seat. The transfer interface is facing the matching connection, and the external power connection terminal (27) of the charging pile is connected to the movable adapter through a conductive wire (73), and a main power switch (74) is arranged on the conductive wire; The control terminal (46) of the card device, the control terminal (28) of the main power switch, the control terminal (29) of the No. 1 cylinder, the control terminal (30) of the No. 2 cylinder, the control terminal (31) of the No. 3 cylinder and the stake The wireless modules (32) are respectively electrically connected to the micro control unit; the charging pile also includes a parking platform (84), on which a turntable (85) and a No. 1 conveyor belt (86) capable of driving vehicles in and out are arranged, No. 2 conveyor belt (101) that can drive the vehicle to move is provided. The turntable is driven by a No. 1 stepping motor to rotate, and the No. 1 conveyor belt is driven by a No. 2 stepping motor. No. stepper motor drive rotation, the control terminal (44) of the No. 1 stepper motor, the control terminal (45) of the No. 2 stepper motor and the control terminal (102) of the No. 3 stepper motor are respectively connected with the micro control unit electric connect. 3. A method for reserving a car rental according to claim 2, characterized in that the charging pile also includes a mains power interface (10), a normally closed switch (11), No. 1 node (12), a mains power monitoring unit (13 ), MOS tube switch (17), No. 2 node (18), backup power supply unit (20), main power supply unit (24), diode D2, DC sensor (25) and public ground GND; Described normally closed switch The control terminal (a3) is electrically connected to the No. 1 instruction output terminal (e3) of the micro-control unit, the power input terminal (a1) of the normally closed switch is electrically connected to the mains interface, and the power output of the normally closed switch Terminal (a2), the power input end of the mains monitoring unit and the power input end of the main power supply unit are respectively electrically connected to the No. 1 contact, and the high level output end of the mains monitoring unit is electrically connected to the MOS tube switch On the gate G, the positive voltage output terminal of the standby power supply unit is electrically connected to the source S of the MOS transistor switch, the positive power supply output terminal of the main power supply unit is electrically connected to the positive pole of the diode D2, and the DC The current input terminal (b1) of the sensor is electrically connected on the drain D of the MOS tube switch, the current output terminal (b2) of the DC sensor, the negative pole of the diode D2, the positive power supply input terminal (e1) of the micro control unit and the charging The live wire connectors (27) of the external power connection terminals of the pile are electrically connected to the No. 2 node respectively, and the control terminal (b3) of the DC sensor is electrically connected to the No. 2 instruction output terminal (e2) of the micro-control unit. The ground terminal of the mains monitoring unit, the ground terminal of the main power supply unit, the ground terminal of the standby power supply unit, the ground terminal of the micro control unit and the ground terminal of the charging pile are respectively electrically connected to the public ground GND. 4. A method for reserving a car rental according to claim 3, characterized in that the backup power unit includes a backup power monitoring port (21), an energy storage battery (22), a low dropout linear voltage regulator (23), and a capacitor C6 , capacitor C7, capacitor C8, resistor R3, resistor R4, resistor R5 and diode D1; one end of the capacitor C6 and one end of the resistor R3 are electrically connected to the backup power monitoring port respectively; the other end of the resistor R3 is connected to the resistor R4 One end of the resistor R5 is electrically connected to one end of the resistor R5; the VIN end of the low dropout linear regulator, the other end of the resistor R4 and one end of the capacitor C7 are respectively electrically connected to the positive end of the energy storage battery; the low dropout voltage The OUT terminal of the linear regulator and one end of the capacitor C8 are electrically connected to the positive pole of the diode D1 respectively; the negative pole of the diode D1 is electrically connected to the source S of the MOS transistor switch, and the negative terminal of the energy storage battery, the capacitor The other end of C6, the other end of the resistor R5, the other end of the capacitor C7, the VSS end of the low dropout linear regulator and the other end of the capacitor C8 are respectively electrically connected to the common ground GND. 5. A kind of reservation car rental method according to claim 4, it is characterized in that, backup power supply unit also comprises wind-solar hybrid array (26), the power supply output end of wind-solar hybrid array is electrically connected with energy storage battery, the control of energy storage battery The terminal (33) is connected with the micro control unit, and the control terminal (34) of the wind-solar complementary array is connected with the micro control unit. 6 . The method for reserving a rental car according to claim 5 , wherein the charging pile further includes an address encoder M1 , a memory M3 , a display screen M4 and a GPS locator M5 electrically connected to the micro control unit. 7 . 7. A method for reserving car rental according to claim 2, characterized in that the charging pile also includes lighting equipment (50), environmental monitoring equipment (51), streaming media advertising equipment (52), urban wireless communication equipment (53 ), camera (54) and dispatching equipment (55); the power interface of described lighting equipment, the power interface of environmental monitoring equipment, the power interface of streaming media advertising equipment, the power interface of urban wireless communication equipment and the power interface of camera are respectively connected with The corresponding power output interface on the charging pile is electrically connected; the control terminal (35) of the main power supply unit, the control terminal (36) of the standby power supply unit, the control terminal (37) of the mains monitoring unit, and the control terminal of the lighting equipment (38), the control terminal (39) of the environmental monitoring equipment, the control terminal (40) of the streaming media advertising equipment, the control terminal (41) of the urban wireless communication equipment, the control terminal (42) of the camera and the dispatching equipment (43) respectively Connect with the microcontroller unit. 8. A method for reserving a rental car according to claim 2, characterized in that the use control process of the adaptive power supply monitoring switching circuit of the electric vehicle rental system is as follows: Connect the mains interface to the mains, and close the normally closed switch; When the mains power is not powered off, the mains power flowing into the No. 1 node is divided into two mains transmission lines. One line of mains power supplies power to the micro control unit after passing through the main power supply unit, diode D2 and No. 2 node in turn, and the other way The mains power is continuously monitored by the mains monitoring unit in real time. When the mains monitoring unit continuously monitors the mains in real time, the high-level output terminal of the mains monitoring unit will simultaneously output a high-level signal to the gate G of the MOS tube switch. ; Since the grid G of the MOS tube switch is a high-level signal, the circuit between the source S of the MOS tube switch and the drain D of the MOS tube switch is in a disconnected state, at this time only the commercial power supplies power to the micro control unit , while the backup power supply unit does not supply power to the microcontroller unit; When the mains power fails, the mains monitoring unit will detect that there is no mains input, and the micro-control unit will also have no mains input; when the mains monitoring unit has no mains input, the high-level output terminal of the mains monitoring unit will There is also no high-level signal output. At this time, the grid G of the MOS tube switch cannot receive a high-level signal, that is, the level signal of the grid G of the MOS tube switch is a low-level signal at this time; When the gate G of the gate is a low-level signal, the circuit between the source S of the MOS tube switch and the drain D of the MOS tube switch is in a conducting state. At this time, the mains does not supply power to the micro control unit, but only the backup power supply The unit supplies power to the microcontroller unit; Under the control of the micro-control unit, the DC sensor also continuously detects the current on the line between the drain D of the MOS tube switch and the second node in real time. If the drain D of the MOS tube switch detected by the DC sensor is The current on the line between the node and the second node is recorded as the current TA, and the detected current TA is uploaded to the micro control unit; When the standby power supply unit supplies power to the micro control unit, the current TA detected by the DC sensor is greater than zero at this time, and the DC sensor sends a signal that the detected current TA is greater than zero to the micro control unit, and the micro control unit judges that the current TA is greater than zero at this time. In the state of mains power failure, the micro-control unit makes corresponding data information processing according to the judgment result of mains power failure; When the mains power comes back after power-off, the mains monitoring unit immediately detects that there is a mains input, and the high-level output terminal of the mains monitoring unit has a high-level signal output. At this time, the gate of the MOS tube switch G receives a high-level signal from the mains monitoring unit, so that the source S of the MOS tube switch and the drain D of the MOS tube switch are in a disconnected state; When the source S of the MOS tube switch and the drain D of the MOS tube switch are disconnected, the micro control unit is powered by the mains again; When the utility power supplies power to the micro-control unit, the current TA detected by the DC sensor is equal to zero at this time, and the DC sensor sends a signal that the detected current TA is equal to zero to the micro-control unit, and the micro-control unit judges that it is powered by the utility power at this time state, the micro-control unit makes corresponding data information processing according to the judgment result of the mains power supply; When it is necessary to detect whether the backup power supply unit has electricity or to detect whether the backup power supply unit can provide power for the micro control unit when the mains is powered off, the detection process is: the micro control unit sends an instruction to the normally closed switch to open the normally closed switch , the normally closed switch is immediately disconnected. If the current TA detected by the DC sensor is greater than zero at this time, it means that the backup power supply unit can provide power for the micro control unit when the mains power fails. If the current TA detected by the DC sensor is If the current TA is equal to zero, it means that the micro control unit is being powered by the backup power supply unit at this time, thus indicating that the backup power supply unit not only has power at this time, but also that the backup power supply unit can provide power for the micro control unit when the mains power fails. providing power; When there is mains power, the micro control unit is powered by the mains power supply, and when there is no mains power supply, the micro control unit is powered by the backup power supply unit, and the cycle goes on and on, so that the micro control unit is always in a state of power, so that the micro control unit can have power. Process data information that needs to be processed in a timely manner. 9. A car rental reservation method according to claim 2, characterized in that the reservation charging control process of the electric car rental system is as follows: the user searches for idle charging piles and idle vehicles and the electric quantity of the corresponding vehicles through the mobile phone, and sends The scheduled time requires a scheduled charging signal to the server, and the server sends the scheduled charging signal to the designated vehicle and designated charging pile; The charging pile obtains the power information of the current vehicle and sends it to the server. The server calculates the power according to the current vehicle status and environmental parameters of the electric vehicle and issues a time-sharing charging control command. The charging pile performs time-sharing charging for the current vehicle; The charging pile is a charging pile that uses peak and valley electricity billing. If the current time is within the valley electricity billing time, the charging pile will charge the electric vehicle; If the current time is within the peak charging time, the server will operate the charging pile according to the vehicle status information uploaded by the vehicle information platform in the vehicle currently bound to the charging pile. The charging pile charges the electric vehicle, and if it is determined that charging is prohibited, the charging pile stops charging the electric vehicle; The charging judgment process is as follows: First, manually or the server assigns a basic power threshold and a basic power coefficient value to each charging pile, Then the server reads the current time, the on-time of the off-peak power and the power value of the energy storage battery of the current vehicle, and the server calculates the difference between the current time and the on-time of the off-peak power to obtain the time difference; When the value obtained by dividing the basic power coefficient value by the time difference value plus the current vehicle's energy storage battery power value is greater than or equal to the basic power threshold, it is determined that charging is prohibited. When the value obtained by dividing the basic power coefficient value by the time difference plus the current vehicle's energy storage battery power value is less than the basic power threshold, it is determined that charging is required; The average number of car borrowings on the corresponding date in the last statistical cycle of the charging pile is multiplied by a given percentage coefficient to obtain the power correction value. The basic power threshold is obtained by adding the basic power value to the power correction value. The basic power value is a unified value; If two electric vehicles are waiting to be charged at the charging pile, the current power values of adjacent vehicles will be compared, and the server will charge the vehicles that need to be charged in order from high to low. 10. A method for car rental reservation according to claim 1, characterized in that the free reservation time for the user is obtained by the basic free reservation time + level-converted free reservation time; the level-converted free reservation time = user level ÷ 60 and then It is obtained by rounding, user level = car rental time + consumption amount + car rental mileage + number of car rentals - number of driving violation records × 10.