CN1312024C - Elevator system - Google Patents

Abstract

The aim of the present invention is to provide an elevator system which has the advantages that traveling cables can be reduced, the elevator system can be difficultly influenced by the reduction and the communication time of a cage and a controller is short. Therefore, as one aspect of the present invention, the position of the wireless terminal of the cage can be judged and a fixed wireless terminal connected with the wireless terminal of the cage can be selected according to information of an encoder arranged on a motor which can enable the cage to rise and fall. In addition, as the other aspect of the present invention, the fixed wireless terminal periodically searches for the wireless terminal of the cage and is always connected with any one fixed wireless terminal, and simultaneously, the connected fixed wireless terminals are marked in the controller. In addition, as another aspect of the present invention, the wireless terminal of the cage periodically searches for the fixed wireless terminals and is always connected with any one fixed wireless terminal, and simultaneously, the connected fixed wireless terminals are marked in the controller.

Description

elevator system

technical field

The invention relates to a signal communication between a load-carrying car and a control device of an elevator, in particular to an elevator communication technology utilizing wireless communication.

Background technique

The communication between the load-carrying car of the existing elevator and the control device is to adopt the wired communication carried out by the cable that is arranged in the accompanying cable. For this reason, the cost of wiring work becomes a problem. In addition, in the inclined elevator, it is necessary to periodically replace the accompanying cables, and the maintenance cost is also a problem.

As a method to solve this problem, wireless signal transmission between the carrying car and the control device can be considered. However, if the electromagnetic environment in the liftway is considered, the transmission quality may not be sufficiently ensured due to the attenuation caused by the reflected wave.

As a method to solve this problem, it is conceivable to adopt a low-power wireless system that uses wired connections between the main control device and a plurality of distributed fixed wireless terminals, and connects with mobile wireless terminals within its coverage area. Such a wireless system is described in JP-A-7-170558. In this prior art, fixed wireless terminals that are wired and connected to a control device to form respective coverage areas are deployed in a distributed manner. According to this system, in the communication between the control device and the mobile wireless terminal, data transmission is performed by wired communication between the control device and the fixed wireless terminal, and wireless communication between the fixed wireless terminal and the mobile wireless terminal.

Contents of the invention

When performing communication between the control device and the mobile wireless terminal, it is necessary to designate which fixed wireless terminal and mobile wireless terminal the control device communicates with. In the above prior art, the control device can determine which fixed wireless terminal can communicate with the mobile wireless terminal by inquiring each fixed wireless terminal. For this reason, when the number of fixed wireless terminals increases, it takes time to find mobile wireless terminals, and there is a problem that elevator control information requiring real-time performance cannot be transmitted.

An object of the present invention is to provide an elevator system that can reduce the number of accompanying cables, is less susceptible to attenuation, and has a fast communication time between a car and a control device.

Mode 1 of the present invention is an elevator system, which is an elevator system provided with a car moving between multiple floors in the hoistway and a control device for controlling the operation of the car, characterized in that:

It includes: a plurality of fixed wireless terminals dispersedly arranged in the liftway connected with the control device through transmission lines, a car wireless terminal arranged on the car, and an encoder arranged on the motor driving the car , a device for detecting the position of the car based on the output of the encoder, a device for periodically selecting the fixed wireless terminal for wireless communication with the car wireless terminal from among the plurality of fixed wireless terminals based on the detection, and logging in, When the communication between the control device and the car wireless terminal starts, the registered fixed wireless terminal communicates with the car wireless terminal, and the registered fixed wireless terminal can communicate between the control device and the car wireless terminal. Car wireless terminals carry out signal transmission.

Mode 2 of the present invention is an elevator system, which is an elevator system provided with a car moving between multi-storey floors in the hoistway, and a control device for controlling the operation of the car, characterized in that:

It includes: at least one fixed wireless terminal dispersedly arranged in the hoistway connected to the control device by a transmission line, a transmission line connecting adjacent wireless terminals, and a car wireless terminal installed on the car 1. A device for selecting a fixed wireless terminal from a plurality of fixed wireless terminals according to the output of an encoder provided on a motor driving the car, through which the selected fixed wireless terminal can be connected between the control device and the car Signal transmission between wireless terminals.

A kind of elevator system, is the elevator system that is provided with the car that moves between multiple floors in hoistway, the control device that controls the operation of described car, is characterized in that:

It includes: at least one fixed wireless terminal dispersedly arranged in the hoistway connected to the control device by a transmission line, a transmission line connecting adjacent wireless terminals, and a car wireless terminal installed on the car , an encoder provided on the motor that drives the car, a device for detecting the position of the car based on the output of the encoder, a device for selecting the fixed wireless terminal closest to the wireless terminal of the car based on the detection, through the selected A fixed wireless terminal may transmit signals between the control device and the car wireless terminal.

For this reason, as another aspect of the present invention, it is configured such that the position of the car wireless terminal can be estimated based on the information of the encoder provided on the motor that lifts the car up and down, and a fixed terminal that can be connected to the car wireless terminal can be selected. wireless terminal.

Also, as another aspect of the present invention, the fixed wireless terminal regularly searches for car wireless terminals, is always connected to any fixed wireless terminal, and sets a flag in the control device for the connected fixed wireless terminal.

Also, as yet another aspect of the present invention, the car wireless terminal regularly searches for fixed wireless terminals, is always connected to any fixed wireless terminal, and sets a flag in the control device for the connected fixed wireless terminal.

Description of drawings

Fig. 1 shows a block diagram of an elevator system according to the present invention.

Fig. 2 shows an interrupt flow chart of the control device.

Fig. 3 is a diagram showing a structure of a fixed wireless terminal flag in the control device.

Fig. 4 shows a flow chart of data transfer by the control device.

FIG. 5 shows a flow chart of incoming call interruption for a fixed wireless terminal.

Fig. 6 shows a flow chart of data reception by the car wireless terminal.

Fig. 7 shows a flow chart of a fixed wireless terminal searching for a car wireless terminal.

Fig. 8 shows a flow chart of the incoming call terminal of the control device.

Fig. 9 shows an interrupt flow chart of the car wireless terminal.

FIG. 10 shows a flow chart of incoming call interruption for a fixed wireless terminal.

Fig. 11 shows a configuration diagram of another elevator system according to the present invention.

Fig. 12 shows a configuration diagram of still another elevator system according to the present invention.

Figure 13 shows a sectional view of an elevator system according to the invention.

Detailed ways

Embodiments of the elevator system according to the present invention will be described below with reference to the drawings.

Fig. 1 shows the constitution of an elevator system according to an embodiment of the present invention.

In FIG. 1 , fixed wireless terminals 20 to 23 are dispersedly arranged in the liftway, and adjacent fixed wireless terminals 20 to 23 are connected by transmission lines. In addition, the control device 10 for controlling the operation of the elevator is also connected so as to be able to communicate with the fixed wireless terminals 20-23.

In the elevator car 30, a car wireless terminal 31 that wirelessly communicates with the fixed wireless terminals 20 to 23 is installed. The counterweight 40, together with the car 30, is hung on the bucket through the sheave 50 and the pulley 60. The sheave 50 is connected to a motor 51, and the car 30 is driven up and down by the drive of the motor. An encoder 52 is connected to the motor, and the position of the car is estimated by the control device 10 from the output of the encoder.

The control device 10 performs operation control while performing signal transmission with the car wireless terminal 31 . For example, elevator door opening and closing instructions and car position information, etc., are transmitted from the control device 10 to the fixed wireless terminals 20-23 through wired transmission, and further, from the fixed wireless terminals 20-23 (any one) to the car wireless transmission through wireless transmission. Terminal 31 transmits. Also, signals to the login button in the car are transmitted from the wireless terminal 31 to the fixed wireless terminals 20-23 by wireless transmission, and further transmitted from the fixed wireless terminals 20-23 to the control device 10 by wired transmission. The wireless used here is a short-distance wireless that does not require a certificate or a license. For example, if the communication range is less than 10m, by using a short-distance wireless, it will not be affected by the attenuation caused by the reflected wave, and the transmission quality can be prevented. deterioration.

The operations of the control device 10, the fixed wireless terminals 20-23, and the car wireless terminal 31 in the embodiment shown in FIG. 1 are shown in FIGS. 2-6.

FIG. 2 shows an interrupt process for estimating the position of the car 30 and specifying a fixed wireless terminal that can be connected to the car wireless terminal 31 .

In the control device 10, in order to estimate the position of the car 30, a timer interruption is performed periodically (step S201). After the timer is interrupted, the control device 10 reads the position information of the car 30 from the encoder 52 provided on the motor 51 for raising and lowering the car 30 (steps S202 and 203). Based on the car position information, the nearest fixed wireless terminal is determined (step S204), and the fixed wireless terminal flag allocated in the not-shown recording section in the control device 10 is updated (step S205). The fixed wireless terminal flag is, for example, as shown in FIG. 3 , and each bit indicates whether or not each fixed wireless terminal can be connected. By regularly executing this operation, the control device 10 can always grasp the fixed wireless terminal that can be connected to the car 30 .

FIG. 4 shows the process of transmitting data from the control device 10 to the car wireless terminal 31 via the fixed wireless terminal.

This process is started when the control device 10 transmits data to the car wireless terminal 31 . First check the above-mentioned fixed wireless terminal sign (step S401), select the fixed wireless terminal that can be connected with the car wireless terminal 31, and connect with the fixed wireless terminal (step S402). Then, a connection request is issued to the car wireless terminal 31 (step S403), and the data to be transmitted is transmitted to the fixed wireless terminal (step S404).

FIG. 5 shows the operation of the fixed wireless terminal. The fixed wireless terminal judges whether the input is a connection request or data for an incoming call interruption (step S501). If during connection request, call out the car wireless terminal 31 (step S502), if there is a response, connect (step S503, 504). If there is no response, the message is communicated to the control device 10 (steps S503, 505). When the input is data, the data is transferred according to the transfer destination (steps S506-509).

FIG. 6 shows the operation of the car wireless terminal 31 .

The car wireless terminal 31 receives the data from the control device 10 after an incoming call interruption occurs (step S601), and performs predetermined operations such as display of the car position (step S602).

In this way, according to this embodiment, since the control device 10 can infer the position of the car 30 according to the data from the encoder 52, there is no need to perform redundant query processing, and the fixed wireless terminal connected to the car wireless terminal 31 can send a message to the car. The wireless terminal 31 performs data transmission, and compared with the conventional system, data transmission can be performed at a high speed.

Another embodiment according to the present invention will be described using FIG. 7 and FIG. 8 .

Fig. 7 shows car connection processing of the fixed wireless terminal according to the present invention. In the fixed wireless terminal, in order to check whether the car wireless terminal 31 exists within the wireless reach range, a timer interruption is performed at regular intervals (step S701). After timing interruption, call out the car wireless terminal 31 (step S702), if there is a response, set up a sign in the control device 10 (step S703, 704). If there is no response, the message is communicated to the control device 10 (step S705).

FIG. 8 shows the operation of the control device 10 . Control device 10, if the input is flag (step S802) for incoming letter interruption (step S801), after confirming the fixed wireless terminal of the transmission source (step S803), update the fixed wireless terminal flag (step S804). If it is input data, then receive the data (step S805)

According to the above operation, the control device 10 can always recognize the fixed wireless terminal connectable to the car wireless terminal 31 . The data transmission from the control device 10 to the car wireless terminal 31 is the same as in FIGS. 4 to 6 . As shown in FIG. 4 , the control device 10 checks the fixed wireless terminal sign and selects a fixed wireless terminal that can be connected to the car wireless terminal 31 . It connects to the fixed wireless terminal, outputs a connection request to the car wireless terminal 31, and transmits data to be transmitted to the fixed wireless terminal. The fixed wireless terminal, as shown in FIG. 5 , judges whether the input is a connection request or data for an incoming letter interruption. If it is a connection request, a call is made to the car wireless terminal 31, and if there is a response, a connection is made. If there is no response, the message is transmitted to the control device 10 . If the input is data, the data is transferred according to the transfer destination. As shown in FIG. 6, the car wireless terminal 31 receives data from the control device 10 due to an incoming call interruption, and performs predetermined operations such as display of the car position.

In this way, according to this embodiment, the control device 10 can select a fixed wireless terminal that can be connected according to the data of the fixed wireless terminal identifier. For this reason, there is no need to perform redundant inquiry processing, and data can be transmitted to the car through the fixed wireless terminal connected to the car wireless terminal 31. Compared with the prior art system, data transmission can be performed at a high speed.

Another embodiment according to the present invention is illustrated by FIG. 9 and FIG. 10 .

FIG. 9 shows the interrupt processing of the car wireless terminal 31 . The car wireless terminal 31 regularly implements a timer interrupt (step S901). When a timer interrupt is generated, a connectable fixed wireless interrupt is retrieved (steps S903 and 904), and a connectable fixed wireless terminal is connected (step S905). In this way, the car wireless terminal 31 is always connected to any one of the fixed wireless terminals.

Interruption causes other than timer interruption include incoming letter interruption and transmission interruption. When an incoming call is interrupted, the car wireless terminal 31 receives data from the connected fixed wireless terminal (step S906). When a transmission interruption occurs, the car wireless terminal 31 transmits data to the connected fixed wireless terminal (step S907).

FIG. 10 shows the operation of the fixed wireless terminal.

The fixed wireless terminal judges whether the input is a connection request or data (step S1002) for the incoming call interruption (step S1001). If it is a connection request, connect with the car wireless terminal 31 (step S1003), and set up a sign in the control device after the connection (step S1004). When the input is data, the data is transferred according to the transfer destination (steps S1005 to 1008). The operation of the control device is the same as in FIG. 8 .

In this way, according to this embodiment, the control device 10 can select a fixed wireless terminal that can be connected according to the data of the fixed wireless terminal identifier. For this reason, there is no need to perform redundant inquiry processing, and data can be transmitted to the car through the fixed wireless terminal connected to the car wireless terminal 31. Compared with the prior art system, data transmission can be performed at a high speed.

Fig. 11 shows yet another embodiment according to the present invention.

In this embodiment, fixed wireless terminals 20-23 are arranged on each floor, and elevator call buttons 200-203 are provided. When the elevator call button is pressed, the call is registered to the control device 10 through the fixed wireless terminal. According to this embodiment, the call registration of the elevator can be implemented on the fixed wireless terminals 20-23, and there is no need to install another terminal because of the call button.

Fig. 12 shows another embodiment according to the present invention.

In this embodiment, in the embodiment of FIG. 11 , antennas are also installed on the waiting place side of the fixed terminal. In this way, the mobile wireless terminal 70 (mobile phone, microcomputer, etc.) equipped with a short-range wireless device can communicate with the control device 10 through a fixed wireless terminal from each waiting place. As the information transmitted between the mobile wireless terminal 70 and the control device 10, the following information can be mentioned.

When using an elevator, an elevator call is registered from the mobile wireless terminal 70 to the control device 10 . Moreover, the operation information (car position and running direction) of the elevator is transmitted from the control device 10 to the mobile wireless terminal 70 and displayed on the display device of the mobile wireless terminal 70 .

When maintenance of the elevator is performed, the maintenance information of the elevator is transmitted from the control device 10 to the mobile wireless terminal 70 and displayed on the display device of the mobile wireless terminal 70 .

Figure 13 shows a cross-sectional view of the hoistway according to the invention.

In the figure, 200 denotes an antenna unit of a fixed wireless terminal, and 310 denotes an antenna unit of a car wireless terminal. In this embodiment, both the antenna unit 200 of the fixed wireless terminal and the antenna unit 310 of the car wireless terminal are arranged on a position where the horizontal projection plane does not overlap with the car and the counterweight. In this way, the antenna unit 200 of the fixed wireless terminal and the antenna unit 310 of the car wireless terminal are in a mutually visible positional relationship, and the wireless communication between the two will not be hindered.

Claims (16)

1. elevator device is the elevator device of control setup that is provided with the operation of the car that moves, the described car of control in elevating road between multi-story, it is characterized in that:

Comprise:

Adopt transmission line and described control setup bonded assembly to disperse to be arranged on the interior a plurality of fixed radio terminals of elevating road, be arranged on the car wireless terminal on the described car, be arranged on the coder on the electrical motor that drives described car, detect the device of car position according to the output of described coder, regularly select and the described fixed radio terminal of car wireless terminal radio communication and the device of logining from described a plurality of fixed radio terminals according to described detection, when communicating by letter between described control setup and car wireless terminal begins with fixed radio terminal and the described car wireless terminal communications bonded assembly device logined

Through the fixed radio terminal of login and can between described control setup and described car wireless terminal, carry out the signal transmission.

2. elevator device according to claim 1 is characterized in that:

Communication between described fixed radio terminal and described car wireless terminal is to be undertaken by the near radio of horsepower output below 1mW.

3. elevator device according to claim 1 is characterized in that:

Described fixed radio terminal is arranged in each layer elevator hall.

4. elevator device according to claim 1 is characterized in that:

One side and elevating road one side are provided with antenna respectively in the elevator hall in described fixed radio terminal.

5. elevator device is the elevator device of control setup that is provided with the operation of the car that moves, the described car of control in elevating road between multi-story, it is characterized in that:

Comprise:

The device of a fixed radio terminal is selected in the output of the coder on the electrical motor that at least one adopts transmission line and described control setup bonded assembly to disperse to be arranged on a plurality of fixed radio terminals in the elevating road, is connected transmission line between the adjacent described wireless terminal, be arranged on car wireless terminal on the described car, basis is arranged on the described car of driving from a plurality of fixed radio terminals

Can carry out signal through selected fixed radio terminal between described control setup and described car wireless terminal transmits.

6. elevator device according to claim 5 is characterized in that:

Communication between described fixed radio terminal and described car wireless terminal is to be undertaken by the near radio of horsepower output below 1mW.

7. elevator device according to claim 5 is characterized in that:

Described fixed radio terminal is arranged in each layer elevator hall.

8. elevator device according to claim 5 is characterized in that:

One side and elevating road one side are provided with antenna respectively in the elevator hall in described fixed radio terminal.

9. elevator device is the elevator device of control setup that is provided with the operation of the car that moves, the described car of control in elevating road between multi-story, it is characterized in that:

Comprise:

At least one adopts transmission line and described control setup bonded assembly to disperse to be arranged on a plurality of fixed radio terminals in the elevating road, is connected transmission line between the adjacent described wireless terminal, be arranged on car wireless terminal on the described car, be arranged on coder on the electrical motor that drives described car, according to the output of coder detect the device of car position, according to the device of the nearest fixed radio terminal of this detection selection and described car wireless terminal

Can carry out signal through selected fixed radio terminal between described control setup and described car wireless terminal transmits.

10. elevator device according to claim 9 is characterized in that:

Communication between described fixed radio terminal and described car wireless terminal is to be undertaken by the near radio of horsepower output below 1mW.

11. elevator device according to claim 9 is characterized in that:

Described fixed radio terminal is arranged in each layer elevator hall.

12. elevator device according to claim 9 is characterized in that:

One side and elevating road one side are provided with antenna respectively in the elevator hall in described fixed radio terminal.

13. an elevator device is the elevator device of control setup that is provided with in elevating road the operation of the car that moves, the described car of control between multi-story, it is characterized in that:

Comprise:

At least one adopts transmission line and described control setup bonded assembly to disperse to be arranged on the interior a plurality of fixed radio terminals of elevating road, connect the transmission line between the adjacent described fixed radio terminal, be arranged on the car wireless terminal on the described car, in the time of in having the scope that can communicate between described car wireless terminal and the described fixed radio terminal, but the fixed radio terminal that exists in this communication range is communicated with described car wireless terminal to be connected, to connect the device that signal transmits to described control setup simultaneously, preserve the device of the connection signal that is transmitted, when between described control setup and described car wireless terminal, carrying out the signal transmission, select the device of the fixed radio terminal that can communicate with described car wireless terminal according to the connection signal preserved.

14. elevator device according to claim 13 is characterized in that:

Communication between described fixed radio terminal and described car wireless terminal is to be undertaken by the near radio of horsepower output below 1mW.

15. elevator device according to claim 13 is characterized in that:

Described fixed radio terminal is arranged in each layer elevator hall.

16. elevator device according to claim 13 is characterized in that:

One side and elevating road one side are provided with antenna respectively in the elevator hall in described fixed radio terminal.

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