CN112614315A

CN112614315A - Device for reliably inquiring truck overload for traffic police and application method

Info

Publication number: CN112614315A
Application number: CN202011644682.1A
Authority: CN
Inventors: 邢文生; 周军; 陈巧云
Original assignee: Jiaozuo university
Current assignee: Jiaozuo university
Priority date: 2020-12-27
Filing date: 2020-12-27
Publication date: 2021-04-06

Abstract

A device for reliably inquiring truck overload for traffic police comprises a short message module and a shell; the device is also provided with an overload detection mechanism, a disassembly and power failure prevention mechanism, a running detection mechanism and a remote control circuit; the overload detection mechanism comprises a photoelectric switch and a trigger circuit, and the photoelectric switch is arranged at the lower end of the shell; the anti-dismounting and anti-power-off mechanism comprises a detection circuit and a normally closed micro power switch, and the micro power switch is arranged at the upper end of the shell; the running detection mechanism comprises a wind driven generator and an output circuit, and the alternating current wind driven generator is arranged in the front end of the shell; the remote control circuit, the trigger circuit, the detection circuit and the output circuit are arranged in the rear end of the shell and are electrically connected with the photoelectric switch, the power switch and the wind driven generator. An application method of a device for reliably inquiring the overload of a truck for a traffic police comprises five steps. The invention brings convenience to traffic police personnel, saves the labor cost of related departments, improves the detection efficiency, has wider coverage and improves the overload management level and effectiveness of the truck.

Description

Device for reliably inquiring truck overload for traffic police and application method

Technical Field

The invention relates to the technical field of traffic management auxiliary equipment used by traffic control departments, in particular to a device for reliably inquiring truck overload for a traffic police and an application method.

Background

With the development of social economy, including more and more roads, houses, bridges and the like, the holding capacity of trucks is also larger and larger, and accordingly, great challenges are brought to the management of relevant departments. At present, most of traffic accidents are caused by truck overload, and the truck overload can also cause the service life of roads, bridges and the like to be shortened, so the overload management of the trucks is the important factor in the traffic management of related departments.

In the prior art, for the management of truck overload, a traffic police person generally performs card setting inspection on a main road section, and when the truck is found to be overloaded, whether the truck is overloaded or not is judged in a weighing mode, and then corresponding punishment is performed. The manual management not only brings inconvenience to traffic police personnel, but also increases the labor cost of related departments. In addition, the truck is judged whether to be overloaded or not by weighing and the like, so that the whole process is complicated and the inspection efficiency is low. More importantly, the truck overload inspection by manual setting card can only be carried out in a fixed road area within a fixed time, the coverage is limited, and more police force is needed when setting card inspection is carried out on more roads for a longer time, so that the limitation exists.

Disclosure of Invention

In order to overcome the defects that in the prior art, the truck overload is checked by manually arranging a card at the side of a road due to the technical limit, the inconvenience is brought to traffic police, the labor cost of related departments is increased, the checking efficiency is low, the truck overload can be checked only in a fixed road area and within a fixed time, the coverage is limited, and more police force is needed when the truck is arranged for checking more roads and longer time, the invention provides a traffic management department which can forcibly install the trucks in the jurisdiction and is used as a safety equipment standard for the trucks, the traffic management department is not required to manually manage on site in application, the equipment can automatically push prompt short messages for the traffic management department as long as the vehicles are overloaded at any place and in any time period, the equipment also has the anti-disassembly and anti-power-outage measures, the normal work of the equipment is effectively ensured, and the traffic management department can also inquire whether specific vehicles are in the running and stopping states according to requirements, therefore, the device for reliably inquiring the truck overload for the traffic police and the application method thereof bring convenience to traffic police personnel, save labor cost of relevant departments, improve detection efficiency, have wider coverage and improve the management level and effectiveness of the truck overload.

The technical scheme adopted by the invention for solving the technical problems is as follows:

a device for reliably inquiring truck overload for traffic police comprises a short message module and a shell; it is characterized by also comprising an overload detection mechanism, a disassembly and power failure prevention mechanism, a running detection mechanism and a remote control circuit; the overload detection mechanism comprises a photoelectric switch and a trigger circuit, the photoelectric switch is arranged at the lower end of the shell, and a detection head of the photoelectric switch faces downwards vertically; the anti-dismounting and anti-power-off mechanism comprises a detection circuit and a normally closed micro power switch, the micro power switch is arranged at the upper end of the shell, and a button of the power switch is vertically upward; the running detection mechanism comprises an alternating current wind driven generator and an output circuit, wherein the alternating current wind driven generator is arranged in the front end of the shell, and the fan blades face the outside of the front end of the shell; the remote control circuit, the trigger circuit, the detection circuit and the output circuit are arranged in the rear end of the shell; the shell is arranged at the lower end of a bottom plate of a cargo box of the truck; the power supply input end of the anti-dismounting and anti-power-off mechanism is electrically connected with a storage battery on the vehicle; the power output end of the anti-dismounting and anti-power-off mechanism is electrically connected with the overload detection mechanism and the power input end of the remote control circuit, and the power output end of the remote control circuit is electrically connected with the power input end of the running detection mechanism; and the signal output ends of the overload detection mechanism, the anti-disassembly and anti-power-off mechanism and the running detection mechanism are respectively and electrically connected with the multi-path signal input end of the short message module.

Further, the short message module is a short message alarm module.

Further, the trigger circuit of the overload detection mechanism comprises a resistor and an NPN triode, the photoelectric switch, the resistor and the NPN triode are electrically connected, the output end of the photoelectric switch is connected with one end of the resistor, the other end of the resistor is connected with the base electrode of the NPN triode, and the negative power input end of the photoelectric switch is connected with the emitting electrode of the NPN triode; the photoelectric switch is a PNP type infrared reflection photoelectric switch.

Furthermore, the detection circuit of the anti-dismounting and anti-power-off mechanism comprises a storage battery, a diode and a relay, wherein the storage battery, the diode, the relay and a power switch are electrically connected, the anode of the storage battery is connected with the cathode of the diode, the anode power input end of the relay is connected with the anode of the diode, and the cathode power input end of the relay and the control power input end of the relay are connected with one end of the power switch; after the shell is installed, the upper end of a button of the power switch is contacted with the lower end of the carriage bottom plate, and the internal contact of the power switch is opened.

Further, the output circuit of the driving detection mechanism comprises a rectifier bridge stack, a resistor, an NPN triode, a relay, an electrolytic capacitor and a three-terminal voltage integration monitor, the alternating-current wind driven generator is electrically connected with the rectifier bridge stack, the resistor, the NPN triode, the electrolytic capacitor, the relay and the three-terminal voltage integration monitor, the power output end of the alternating-current wind driven generator is connected with two ends of the power input end of the rectifier bridge stack respectively, the positive power output end of the rectifier bridge stack is connected with the positive power input end of the three-terminal voltage integration monitor and the positive electrode of the electrolytic capacitor, the output end of the three-terminal voltage integration monitor is connected with one end of the resistor, the other end of the resistor is connected with the base of the NPN triode, the collector of the NPN triode is connected with the negative power input end of the relay, the negative, And the negative power output end of the rectifier bridge stack is connected with the relay control power input end.

Further, the remote control circuit comprises a model remote wireless controller, a resistor, an NPN triode and a relay, wherein the remote wireless controller is electrically connected with the resistor, the NPN triode and the relay, a positive power input end of the remote wireless controller is connected with a positive control power input end and a positive power input end of the relay, one output end of the remote wireless controller is connected with one end of the resistor, the other end of the resistor is connected with a base electrode of the NPN triode, a collector electrode of the NPN triode is connected with a negative power input end of the relay, and a negative power input end of the remote wireless controller is connected with an emitter electrode of the NPN triode and a negative control power input end of the relay.

An application method of a device for reliably inquiring truck overload for traffic police is characterized by comprising the following steps: the traffic control department installs a set of device for inquiring truck overload for the trucks to be monitored in the jurisdiction, and technicians of the traffic control department adjust the detection distance of a detection head of the photoelectric switch during installation so as to ensure that the power output end of the photoelectric switch outputs high level when the vehicles are overloaded; and B: a technical worker in a traffic management department installs the shell at the lower end of a bottom plate of a cargo box of a truck and ensures that blades of the alternating-current wind driven generator are positioned at the front end; and C: in application, when a driver loads cargos for a vehicle and the cargos are overweight, the overload detection mechanism outputs a low-level signal to trigger the short message module to push a vehicle overload content short message for a mobile phone of a related management personnel of a traffic management department; step D: in application, when a driver maliciously removes the shell or disconnects the power supply of a storage battery on a vehicle, the removal-prevention and power-off mechanism pushes the short message content with the power supply disconnected or the shell removed for the mobile phone of the related management personnel of the traffic management department; step E: in the application, when the traffic management department needs to inquire about the specific vehicle state, send corresponding command signal to the remote control circuit through personal cell-phone APP, the remote control circuit switches on the detection mechanism power of traveling, and the detection mechanism of traveling is in the information of traveling or stopping for the cell-phone propelling movement vehicle of the relevant managers of pipe door.

Further, in the step a, when the transportation administration department installs a set of device for inquiring truck overload for trucks to be monitored in the jurisdiction, the number plate number corresponding to the vehicle and the information of the SIM card number in the corresponding short message module are synchronously input, and one SIM card number corresponds to a specific truck.

Further, in step C, D, when the specific vehicle is a management person in the management of the door to push the information of the vehicle overload, being detached or being powered off and the driving state, the management person can specifically know various information of the vehicle through the license plate number corresponding to the mobile phone number.

Further, in the step E, when the delivery management department sends the corresponding instruction signal to the remote control circuit of the specific vehicle through the mobile phone APP at the side and the short message module of the corresponding vehicle does not send the short message, it represents that the vehicle owner does not charge the SIM card and the device is damaged as a whole.

The invention has the beneficial effects that: the traffic control department can force the trucks in the district to be installed as a safety device standard allocation of the trucks, the manual management of a traffic police department is not needed in the application, and as long as the vehicles are overloaded at any place and any time period, an overload detection mechanism can automatically push prompt short messages for the mobile phones of personnel in the traffic control department, so that the personnel in the traffic control department can master the overload behaviors of the vehicles at the first time, and the telephone drivers can not carry out overload transportation at the first time, so that the vehicles are prevented from being punished correspondingly, and the good overload prevention management effect is achieved. The invention also has anti-disassembly and anti-power-off measures, when a driver tries to achieve the destruction purpose by disconnecting the power supply of the vehicle storage battery or disassembling the anti-disassembly and anti-power-off mechanism, the anti-disassembly and anti-power-off mechanism can push the short message content with the power supply disconnected or the shell disassembled for the related management personnel of the traffic control department, so that the related personnel of the traffic control department can call the driver to avoid the destruction at the first time, and the anti-disassembly and anti-power-off function is good. The management personnel of the traffic management department can also send corresponding command signals to the remote control circuit through the mobile phone APP at the side of the management personnel, inquire whether a specific vehicle is in an operation and stop state at any time according to needs, and can know whether a vehicle owner does not charge the SIM card or the equipment is damaged integrally according to the needs, and provide data support for making corresponding measures (for example, when the traffic management department receives a short message that the vehicle is continuously overloaded and runs on the road, a telephone driver can further inform the traffic management department of stopping the vehicle so as to avoid corresponding punishment, or the telephone driver charges the SIM card in the equipment, or the telephone driver drives the vehicle to a management area and the traffic management department for maintenance). The invention brings convenience to traffic police personnel, saves the labor cost of related departments, improves the detection efficiency, has wider coverage and improves the overload management level and effectiveness of the truck. Based on the above, the invention has good application prospect.

Drawings

The invention is further illustrated below with reference to the figures and examples.

FIG. 1 is a schematic diagram of the present invention.

Fig. 2 is a circuit diagram of the present invention.

Detailed Description

As shown in fig. 1, a device for a traffic police to reliably inquire about truck overload comprises a short message module 1 and a shell 2; the device is also provided with an overload detection mechanism, a disassembly and power failure prevention mechanism, a running detection mechanism and a remote control circuit 6; the shell 2 is a rectangular mechanism, four fixing holes 22 are formed in the periphery of the upper end of the shell 2 (the shell is convenient to mount on a vehicle through screw nuts), the middle of the upper end and the middle of the lower end of the shell 2 are respectively provided with one fixing hole 21, the front end of the shell 2 is provided with an air inlet circular hole, and a circular metal mesh enclosure 24 is welded at the front outer side end of the air inlet circular hole 23; the overload detection mechanism comprises a photoelectric switch 31 and a trigger circuit 32, the photoelectric switch 31 is connected in an opening at the lower end of the shell 2 by glue, and a detection head of the photoelectric switch 31 faces downwards vertically; the anti-dismounting and anti-power-off mechanism comprises a detection circuit 41 and a button type normally closed micro power switch 42, wherein the micro power switch 42 is connected in an opening in the middle of the upper end of the shell 2 by glue, and a button of the power switch 42 is vertically upward; the running detection mechanism comprises a miniature axial flow alternating current wind driven generator 51 and an output circuit 52, wherein the axial flow alternating current wind driven generator 51 is installed in the front end of the shell 2 through a screw nut, and the axial flow fan 51 is positioned at the round hole and the inner side end of the metal mesh enclosure 24; the remote control circuit 6, the trigger circuit 32, the detection circuit 41 and the output circuit 52 are arranged on a circuit board, the circuit board is arranged in the rear end of the shell 2, and a sealing isolation plate is arranged between the circuit board and the rear end of the shell of the axial flow AC wind driven generator 51; the upper end of the shell 1 is arranged at the lower end of the middle part of the bottom plate of the cargo box of the truck through a screw nut (a detection head of a photoelectric switch U2 is aligned with the ground).

As shown in fig. 1 and 2, the short message module U1 (with SIM card therein) is a finished short message alarm module of GSM DTU SIM800C, the finished short message alarm module U1 has two

power input terminals

1 and 2 pins, eight signal input ports 3-10 pins, after each signal input port inputs low level signal, the finished product of the short message alarm module U1 sends a short message through the wireless mobile network, and a plurality of short messages with different contents can be stored in the finished product of the short message alarm module U1 (in this embodiment, a manager edits five short messages in advance through the functions of the finished product of the short message alarm module U1, wherein the contents are respectively 'power supply disconnected', 'equipment disconnected', 'vehicle overload', 'vehicle running', 'vehicle stopped'), and after five signal input ports 3-7 of the short message alarm module U1 output low-level signals respectively, the short message alarm module U1 can send five short messages with different contents respectively. The trigger circuit of the overload detection mechanism comprises a resistor R1 and an NPN triode Q1, a photoelectric switch U2, a resistor R1 and an NPN triode Q1 are connected through a lead, the pin 3 of the output end of the photoelectric switch U2 is connected with one end of a resistor R1, the other end of the resistor R1 is connected with the base electrode of the NPN triode Q1, and the pin 2 of the negative power supply input end of the photoelectric switch U2 is connected with the emitter of the NPN triode Q1; the photoelectric switch U2 is a remote PNP infrared reflection photoelectric switch finished product with model number GP18-300DN1, the photoelectric switch U2 is provided with two

power input ends

1 and 2 pins and a high level output end 3 pin, when the photoelectric switch U2 works, an infrared light beam emitted by a straight line of a transmitting head of a lower end detecting head is blocked by an article, after a receiving head at the lower end of the detecting head receives the infrared light beam, the high level output end 3 pin outputs high level, and when the infrared light beam is not blocked by the article, the high level is not output; the farthest detection distance of the photoelectric switch U2 is 300cm, an adjusting knob is arranged in the upper side end of the shell, the detection distance of the adjusting knob is shortened when the adjusting knob is adjusted leftwards, and the detection distance of the adjusting knob is lengthened when the adjusting knob is adjusted rightwards. The detection circuit of the anti-disassembly and anti-power-off mechanism comprises a 24V/1Ah lithium storage battery G1, a diode VD and a relay K, wherein the lithium storage battery G1, the diode VD, the relay K and a power switch S are connected through a lead, the anode of the lithium storage battery G1 is connected with the cathode of the diode VD, the anode power input end of the relay K is connected with the anode of the diode VD, and the cathode power input end of the relay K and the control power input end of the relay K are connected with one end of the power switch S; after the shell 2 is installed, the upper end of a button of the power switch S is contacted with the lower end of the carriage bottom plate, and the internal contact of the power switch S is opened.

As shown in fig. 1 and 2, the output circuit of the driving detection mechanism includes a bridge rectifier U4, a resistor R4, AN NPN triode Q3, a relay K1, AN electrolytic capacitor C1, and a three-terminal voltage integration monitor U5 of model AN051A, the miniature axial-flow ac wind power generator M is connected with the bridge rectifier U4, a resistor R4, AN NPN triode Q3, AN electrolytic capacitor C1, a relay K1, and a three-terminal voltage integration monitor U4 through wires, the power output terminal of the ac wind power generator M is connected with two

terminals

1 and 2 of the power input terminal of the bridge rectifier U4 respectively, the pin 3 of the positive power output terminal of the bridge rectifier U4 is connected with the pin 2 of the positive power input terminal of the three-terminal voltage integration monitor U4, the positive terminal of the electrolytic capacitor C1, the pin 1 of the three-terminal voltage integration monitor U5 is connected with one end of the resistor R4, the other end of the resistor R4 is connected with the base of the NPN Q3, the collector of the triode Q, the three-terminal voltage integration monitor U5 is connected with the negative power supply input end pin 3, the NPN triode Q3 emitter, the electrolytic capacitor C1 negative electrode, the rectifier bridge stack U4 negative power supply output end pin 4 and the relay K1 control power supply input end. The remote control circuit comprises a finished remote wireless controller U3 (a SIM card is used together with a short message module) of a model CL4-GPRS, a resistor R2, an NPN triode Q2 and a relay K2, the finished remote wireless controller U3 is provided with two power supply input ends, four control power supply output terminals and working voltage of direct current 6V, in use, a user can respectively send control instructions through a mobile phone APP at the far end through a wireless mobile network, after receiving the control instructions, the remote wireless controller can respectively control the output ends of the four control power supplies to output or not output power supplies, the remote wireless controller U3 is connected with the resistor R2, the NPN triode Q2 and the relay K2 through wires, a pin 1 at the positive power supply input end of the remote wireless controller U3 is connected with the positive power supply input end and the positive power supply input end of the relay K2, a pin 3 at one output end of the remote wireless controller U3 is connected with one end of the resistor R2, the other end of the resistor R2 is connected with a base electrode of an NPN triode Q2, a collector electrode of the NPN triode Q2 is connected with a negative power supply input end of a relay K2, and a pin 2 of the negative power supply input end of the remote wireless controller U3 is connected with an emitting electrode of the NPN triode Q2 and a negative control power supply input end of the relay K2.

As shown in fig. 1 and 2, the anode of the diode VD at the power input end of the anti-detachment and anti-power-off mechanism, the power input end of the cathode of the lithium storage battery G1 and the two poles of the storage battery G on the vehicle (truck) are respectively connected through wires. The cathode of a diode VD at the power output end of the anti-dismounting and anti-power-off mechanism, the cathode of a lithium storage battery G1, the 1 and 2 pins of a photoelectric switch U2 at the power input end of the overload detection mechanism and the 1 and 2 pins of a finished product U3 of a remote wireless controller at the power input end of a remote control circuit are respectively connected through leads. Two normally open contact ends of a power output end relay K2 of the remote control circuit are respectively connected with a positive power input end and a negative control power input end of a power input end relay K1 of the running detection mechanism through leads. An emitter of an NPN triode Q1 at the signal output end of the overload detection mechanism, a normally closed contact end of a relay K at the signal output end of the anti-dismounting and anti-power-off mechanism, the other end of a power switch S, and a normally closed contact end and a normally open contact end of a relay K1 at the signal output end of the running detection mechanism are respectively connected with five

signal input ends

3, 4, 5, 6 and 7 of a short message module U1 through leads.

As shown in fig. 1 and 2, before the present invention is used, a traffic control department installs a set of the present invention for trucks to be monitored in a district (or only installs a large truck in the district to reduce workload), when the present invention is installed, a certain weight of cargo is loaded in a cargo container of a vehicle, the weight of the cargo is in a state of just overloading, then a technician of the traffic control department adjusts a detection head detection distance of a photoelectric switch U2, when the upper end of a shell is just adjusted to be positioned at the lower end of a cargo container bottom plate of the truck, and a 3-pin output high level of the photoelectric switch U2 reaches an adjustment requirement (a positive meter pen and a negative meter pen of a voltmeter are connected with 3 pins and 2 pins of a photoelectric switch U2, a voltage displayed by the voltmeter indicates that the 3 pins of the photoelectric switch U2 output a power source), a rear end cover of the shell is opened before the adjustment, the rear end cover is fixed after the adjustment, and is adhered with a seal to prevent a driver from detaching and, after half a year, for example, the traffic authority may check for the seal being torn off by the vehicle-to-traffic authority). After the detection distance of the detection head of the photoelectric switch U2 is adjusted, the technicians of the traffic control department install the shell in the middle of the lower end of the bottom plate of the cargo box of the truck and ensure that the blades of the alternating-current wind driven generator 51 are positioned at the front end. When the invention is installed in all the trucks to be monitored in the jurisdiction of the traffic department, the license plate number (including the car owner's phone) corresponding to the vehicle and the SIM card number information in the corresponding short message module are synchronously input in a PC (personal computer), and one SIM card number corresponds to one specific truck.

As shown in fig. 1 and 2, in the practical application of the invention, in the anti-removal and anti-power-off mechanism, the lithium storage battery G1 is fully charged when in initial use, and the anode of the storage battery G on the vehicle is unidirectionally conducted to supply electricity to the lithium storage battery G1 through the diode VD, so that the invention can be normally used within a period of time (generally days) after the power supply of the storage battery G of the vehicle is disconnected. After the power output by the lithium storage battery G1 enters the power input ends of the overload detection mechanism and the remote control circuit, the circuit and the anti-dismounting and anti-power-off mechanism are in the power-on working state. After the anti-disassembly and anti-power-off mechanism works, a power supply output by a storage battery G on a vehicle enters the positive power supply input end of a relay K, the relay K is in an electrified attraction state, the control power supply input end and the normally closed contact end are opened, when a driver tries to cut off the power supply of the storage battery G to enable the subsequent storage battery G1 to be released and cannot normally work, as the positive power supply of the storage battery G of the vehicle does not enter the positive power supply input end of the relay K, the relay K loses the power and controls the power supply input end and the normally closed contact end to be closed, further, the negative electrode of a lithium storage battery G1 enters 4 pins of a short message module U1 through the control power supply input end and the normally closed contact end of the relay K, and then the short message module U1 can send a second short message content 'power supply is cut' stored. After receiving the short message, the management personnel of the traffic management department connected with the short message module can visually know the information of the specific damage input power supply vehicle owner through the information of the wagon license plate number, the vehicle owner and the like corresponding to the mobile phone number for sending the short message, so that the management personnel can timely warn the vehicle owner that the input power supply cannot be damaged through a telephone contact vehicle owner mode, and the normal use of the invention is ensured. After the shell 2 is installed, the upper end of the button of the power switch S is contacted with the bottom plate of the wagon compartment, so that the internal contact of the power switch S is open, and the 5-pin of the short message module U1 can not be input with a low-level signal and can not send a short message. When a truck driver tries to take off the short message storage device, due to the fact that the shell is separated from the lower end of the truck bottom plate, the internal contact of the power switch S is closed, power output by the negative electrode of the lithium storage battery G1 enters the 5-pin of the short message module U1, and the short message module U1 sends out a third short message content 'the device is detached' stored in advance under the action of the internal circuit of the short message module U1. After receiving the short message, the mobile phone of the manager of the traffic management department connected with the short message module can visually know the information of the vehicle owner trying to destroy the equipment in a concrete way through the information of the wagon license plate number, the vehicle owner and the like corresponding to the mobile phone number for sending the short message, so that the manager can timely warn the vehicle owner by contacting the vehicle owner through a telephone, and restore the installed shell on site (simultaneously giving corresponding punishment to the vehicle owner), thereby ensuring the normal use of the invention.

As shown in fig. 1 and 2, after the overload detection mechanism is powered on, when the vehicle is not overloaded with cargo, the lower end of the bottom plate of the truck bed is relatively far away from the ground (for example, more than 1.4 meters), no obstacle exists under the detection head of the photoelectric switch U2 (the detection distance of the photoelectric switch U2 is adjusted to be more than 1.4 meters), and 3 feet do not output high level, so that 3 feet of the subsequent short message module U1 are not input low level and do not send short messages. When the vehicle is loaded with overweight (actually, the invention can detect overload of the goods at the first time when the goods are loaded, so that a traffic control department can master the specific situation at the first time), the lower end of the bottom plate of the wagon compartment and the ground are relatively close (for example, below 1.4 meters), the front part below a detection head of the photoelectric switch U2 is blocked by an obstacle, 3 pins of the detection head output high level are subjected to voltage reduction and current limitation through the resistor R1 and enter the base electrode of the NPN triode Q1, the NPN triode Q1 is further conducted with a collector electrode to output low level to enter the 3 pins of the short message module U1, and the short message module U1 sends out the first short message content 'vehicle overload' stored in advance under the action of an. After receiving the short message, the management personnel of the traffic management department connected with the short message module can visually know the specific information of the overloaded vehicle owner through the information of the license plate number of the truck, the vehicle owner and the like corresponding to the mobile phone number of the short message, so that the management personnel can timely contact the vehicle owner through a telephone to warn the vehicle owner that the vehicle owner is not overloaded, the overload of the truck is processed at the initial stage, and unsafe factors and damage acting force and the like to the road surface caused by the overloaded vehicle driving into the road are prevented.

As shown in fig. 1 and 2, the management personnel of the traffic control department can also send corresponding command signals to the remote control circuit through the mobile phone APP at the side of the vehicle, and inquire whether a specific vehicle is in a running or stopping state at any time according to needs. When a manager sends a first path of control instruction through the mobile phone APP, the remote wireless controller U3 (the SIM card numbers of the remote wireless controllers U3 of different vehicles are different, therefore, when the manager sends an instruction to a corresponding vehicle through the mobile phone APP, the remote wireless controllers U3 among a plurality of vehicles cannot interfere with each other) receives the instruction, the first output end pin 3 can output a high level, the high level is subjected to voltage reduction and current limitation through the resistor R2 and enters the base electrode of the NPN triode Q2, then the NPN triode Q2 conducts the collector to output a low level, the low level enters the negative power input end of the relay K2, the relay K2 is electrified to attract the two control power input ends and the two normally open contact ends of the relay K2 to be respectively closed, and the driving. After the driving detection mechanism is powered on, if the vehicle does not drive and the wind driven generator M cannot generate electricity under the action of wind power, the relay K1 cannot be powered on and attracted, so that a negative power supply input by the lithium storage battery G1 can enter the 6 feet of the short message module U1 through the relay K1 to control the power supply input end and the normally closed contact end, and the short message module U1 can send out a fourth short message content 'the vehicle does not drive' stored in advance under the action of an internal circuit of the short message module U1. After receiving the short message, the management personnel of the traffic management department who establishes connection with the short message module can directly know that the specific vehicle does not run through the information such as the license plate number of the truck, the owner of the truck and the like corresponding to the mobile phone number of the short message (for example, when the vehicle is overloaded, the management personnel can know that the vehicle is not on the way after being loaded with the goods through the content of the short message). After the running detection mechanism is powered on, if the vehicle runs, the wind driven generator M can generate an alternating current power supply under the action of the windward force to enter the

pins

1 and 2 of the rectifier bridge stack U4, and then the

pins

3 and 4 of the rectifier bridge stack U4 output a direct current 12V or so power supply to enter the

pins

2 and 3 of the three-terminal voltage integrated monitor U5 (the electrolytic capacitor C1 has a filtering effect); at the moment, the voltages of the

pins

2 and 3 entering the three-terminal voltage integration monitor U5 are higher than the internal 4.75V threshold voltage of the three-terminal voltage integration monitor U5, so that the high level output by the pin 1 of the three-terminal voltage integration monitor U5 is reduced in voltage and limited in current through the resistor R4 and enters the base of the NPN triode Q3, the NPN triode Q3 conducts the collector and outputs the low level to enter the negative power input end of the relay K1, then the relay K1 is electrified and attracted, the control power input end and the normally open contact end of the relay K1 are closed, further, the negative power input by the 12V lithium storage battery G1 enters the pin 7 of the short message module U1 through the control power input end and the normally open contact end of the relay K1, and then the short message module U1 sends the fifth short message content stored in. After receiving the short message, the management personnel of the traffic management department who establishes connection with the short message module can directly know that the specific vehicle is in running through the information such as the license plate number of the truck, the owner of the truck and the like corresponding to the mobile phone number of the short message (for example, when the vehicle is overloaded, the management personnel can know that the vehicle is on the way after being loaded). According to the invention, through the driving detection mechanism, whether the vehicle owner does not charge the SIM card and whether the whole equipment is damaged or not can be known (if a manager sends an instruction through the mobile phone APP and does not receive any short message content, the vehicle owner does not charge the SIM card or the whole equipment is damaged) so as to provide data support for making corresponding measures (for example, when a traffic management department receives the short message that the vehicle is continuously overloaded and runs on the road, the traffic management department can further inform the traffic management department of stopping the vehicle to avoid corresponding penalties, or the traffic management department charges the SIM card in the equipment or drives the vehicle to a management area and carries out maintenance). It should be noted that the invention mainly aims at that the overload can be monitored in time and informed to the driver when the vehicle is loaded, thereby reducing the probability that the driver illegally overloads the vehicle; in an extreme case, if the distance between a detection head of the photoelectric switch U2 and the ground is too close due to the fact that the road surface is too bumpy, the short message module U1 sends a short message of vehicle overload content, but the vehicle is not overloaded when loaded, and a manager can send a corresponding instruction signal to the remote control circuit through the mobile phone APP at the side to know, and if the vehicle is in a driving state and is not overloaded before the vehicle is loaded, the vehicle is judged to be not overloaded accordingly. The invention brings convenience to traffic police (effective management can be realized in a duty room), saves the labor cost of related departments, improves the detection efficiency, has wider coverage and improves the management level and effectiveness of truck overload. Relays K, K1, K2 are DC24V relays; the resistances of the resistors R1, R2 and R4 are 10K; the model numbers of NPN triodes Q1, Q2 and Q3 are 9013; the diode VD model is 1N 4007; the generator M is a small axial flow wind driven generator, and the electric energy generated by the effect of the windward force when the vehicle is at normal speed is about 12V; the electrolytic capacitor C1 is 470 mu F/25V; the rectifier bridge stack U4 model is KBP 310.

While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A device for a traffic police to reliably inquire about overloading of a truck, comprising a short message module and a housing; it is characterized in that it also has an overload detection mechanism, an anti-dismantling and power failure prevention mechanism, a driving detection mechanism, and a remote control circuit; the overload detection mechanism includes A photoelectric switch and a trigger circuit, the photoelectric switch is installed at the lower end of the casing and the detector head of the photoelectric switch faces vertically downward; the anti-dismantle and power-off mechanism includes a detection circuit and a normally closed micro-power switch, and the micro-power switch is installed on the casing The upper end and the button of the power switch are vertically upward; the driving detection mechanism includes an AC wind generator and an output circuit, the AC wind generator is installed in the front end of the casing, and the fan blades face the outer end of the front side of the casing; the remote control The circuit, the trigger circuit, the detection circuit and the output circuit are installed in the rear end of the casing; the casing is installed at the lower end of the bottom plate of the cargo box of the truck; the power input end of the anti-disassembly and power-off mechanism is electrically connected to the battery on the vehicle; The power output end of the anti-dismantling and power failure mechanism is electrically connected with the overload detection mechanism and the power input end of the remote control circuit, and the power output end of the remote control circuit is electrically connected with the power input end of the driving detection mechanism; The signal output end of the mechanism, the tamper-proof and power-off mechanism, and the driving detection mechanism are respectively electrically connected with the multi-channel signal input end of the short message module.

2 . The device for a traffic policeman to reliably inquire about overloading of a truck according to claim 1 , wherein the short message module is a short message alarm module. 3 .

3. a kind of device according to claim 1, it is characterized in that, the trigger circuit of overload detection mechanism comprises resistance, NPN triode, the electrical connection between photoelectric switch, resistance, NPN triode, photoelectricity The output end of the switch is connected to one end of the resistor, the other end of the resistor is connected to the base of the NPN triode, the negative power input end of the photoelectric switch is connected to the emitter of the NPN triode; the photoelectric switch is a PNP infrared reflection photoelectric switch.

4. a kind of device according to claim 1 is characterized in that, the detection circuit of the anti-dismantling and power-off prevention mechanism comprises a storage battery, a diode and a relay, and between the storage battery, the diode, the relay and the power switch Electrical connection, the positive electrode of the battery is connected to the negative electrode of the diode, the positive power input end of the relay is connected to the positive electrode of the diode, the negative power input end of the relay and the control power input end are connected to one end of the power switch; after the casing is installed, the upper end of the button of the power switch is connected to the bottom of the carriage The lower end contacts and the internal contacts of the power switch are open.

5. a kind of device according to claim 1, it is characterized in that, the output circuit of driving detection mechanism comprises rectifier bridge stack, resistor, NPN triode, relay, electrolytic capacitor and three-terminal voltage integrated monitoring The electrical connection between the AC wind turbine and the rectifier bridge stack, resistors, NPN transistors, electrolytic capacitors, relays, and three-terminal voltage integrated monitors, the power output of the AC wind turbine and the power input of the rectifier bridge stack. They are connected respectively. The positive power output terminal of the rectifier bridge stack is connected to the positive power input terminal of the three-terminal voltage integrated monitor and the positive electrode of the electrolytic capacitor. The output terminal of the three-terminal voltage integrated monitor is connected to one end of the resistor, and the other end of the resistor is connected to the NPN triode base. Polar connection, NPN triode collector and relay negative power input terminal, the negative power input terminal of the three-terminal voltage integrated monitor and NPN triode emitter, electrolytic capacitor negative terminal, rectifier bridge stack negative power output terminal, relay control power input terminal connect.

6. the device that a kind of traffic police according to claim 1 reliably inquires about truck overload, it is characterized in that, the remote control circuit comprises model remote wireless controller and resistance, NPN triode, relay, remote wireless controller and resistance, NPN triode , The relay is electrically connected, the positive power input terminal of the remote wireless controller is connected to the positive control power input terminal and the positive power input terminal of the relay K, one of the output terminals of the remote wireless controller is connected to one end of the resistor, and the other end of the resistor is connected to the NPN transistor. The base is connected, the collector of the NPN transistor is connected to the negative power input terminal of the relay, and the negative power input terminal of the remote wireless controller is connected to the NPN transistor emitter and the negative control power input terminal of the relay.

7. a kind of device according to claim 1 is characterized in that its application method comprises the following steps, and it is characterized in that the traffic control department installs a set of inquiries about the overloading of trucks for the trucks that need to be monitored within the jurisdiction. During installation, the technicians of the traffic control department adjust the detection distance of the detector head of the photoelectric switch to ensure that the power output terminal of the photoelectric switch outputs a high level when the vehicle is overloaded; Step B: The technicians of the traffic control department install the casing on the bottom plate of the cargo box of the truck The lower end, and ensure that the blades of the AC wind turbine are located at the front end; Step C: In the application, when the driver loads the vehicle with overweight goods, the overload detection mechanism outputs a low-level signal to trigger the SMS module to push the vehicle overload to the mobile phone of the relevant management personnel of the traffic control department. Content SMS; Step D: During the application, when the driver maliciously removes the casing, or disconnects the battery power supply on the vehicle, the anti-disassembly and power-off mechanism will push the relevant management personnel of the traffic control department to push the power supply to the mobile phone or the casing to be disconnected. Step E: In the application, when the traffic control department needs to inquire about the specific vehicle status, it will send the corresponding command signal to the remote control circuit through the mobile phone APP, and the remote control circuit will turn on the power supply of the driving detection mechanism, and the driving detection mechanism is related to the management department. The personnel mobile phone pushes the information that the vehicle is running or stopped.

8. a kind of application method of the device that a kind of traffic police according to claim 7 is used for inquiring about the overload of trucks reliably, it is characterized in that, in step A, the traffic control department all installs a set of devices for inquiring about overloading of trucks for the trucks that need to be monitored within the jurisdiction At the same time, the corresponding license plate number of the vehicle and the SIM card number information in the corresponding SMS module are simultaneously entered, and a SIM card number corresponds to a specific truck.

9. The application method of a device for reliably inquiring about overloading of a truck by a traffic policeman according to claim 7, characterized in that, in steps C and D, the specific vehicle is that the mobile phone of the relevant management personnel of the management department pushes the overloading of the vehicle, is disassembled or is When the power is cut off and the driving status information, the management personnel can know the various information of the vehicle in detail through the license plate number corresponding to the mobile phone number.

10. The application method of a device for a traffic policeman to reliably inquire about overloading of a truck according to claim 7, wherein in step E, when the traffic control department sends a corresponding command signal to the remote control circuit of the specific vehicle via a mobile phone APP, When the SMS module of the corresponding vehicle does not send SMS, it means that the vehicle owner did not charge the SIM card or the device is damaged as a whole.