WO2011009356A1

WO2011009356A1 - Wireless remote elevator call control system with multiple antennas and control method thereof

Info

Publication number: WO2011009356A1
Application number: PCT/CN2010/074121
Authority: WO
Inventors: 石中强; 陈良; 郑钦慧; 李海波; 崔妍; 马卫红
Original assignee: 杭州优迈科技有限公司
Priority date: 2009-07-20
Filing date: 2010-06-21
Publication date: 2011-01-27
Also published as: CN101955094A; CN101955094B

Abstract

A wireless remote elevator call control system with multiple antennas and a control method thereof are disclosed, wherein, the control system includes a base station, a target card and an elevator main control panel. The base station identifies the motion track of the target card by detecting the signals sent by the target card so as to respond to the elevator operation corresponding to the motion track. The base station automatically identifies and responds to the target card without passengers touching any key or using a card. In an area with certain distance away from the elevator, once a passenger operates the target card, the elevator would automatically responds to the calling operation. And when the passenger enters the elevator cage, the elevator can also automatically respond to a destination floor operation.

Description

Multi-antenna wireless remote elevator call control system and control method

This application claims the priority of the Chinese patent application filed on July 20, 2009, the Chinese Patent Office, the application number is 200910100780.6, and the invention is entitled "Multi-antenna wireless remote elevator call control system and control method". The citations are incorporated herein by reference.

Technical field

The invention belongs to the technical field of elevators, and in particular relates to a control system and a control method for wireless remote elevator calling based on multiple antennas. Background technique

At present, the response mode of the elevator car call-out device is an active response, that is, the passenger needs to touch the corresponding button or actively swipe the card to realize the operation request for the elevator, and when the elevator control system receives the operation request from the customer, it will control The elevator performs the corresponding operation.

The above is a conventional elevator car calling method, and the problem is that in most cases, the passenger is waiting for the arrival of the elevator, thus wasting valuable time for the passenger. Summary of the invention

The invention provides a multi-antenna wireless remote elevator control system and control method, which can save valuable time for passengers.

The multi-antenna wireless remote elevator calling control system provided by the invention comprises: a base station, a target card and an elevator main control board;

The base station includes a base station first signal transmitting antenna and a base station second signal transmitting antenna; the base station is configured to control the base station first signal transmitting antenna to radiate an electromagnetic field to the surrounding space in a first time period, and then stop transmitting; the target card is used Obtaining a field strength of the electromagnetic field emitted by the first signal transmitting antenna of the base station, and sending the field strength back to the base station; the base station is configured to obtain a first distance between the target card and the first signal transmitting antenna of the base station according to the field strength returned by the target card;

After obtaining the first distance, the base station main control module is further configured to control the base station second signal transmitting antenna to radiate an electromagnetic field to the surrounding space in a first time period, and then stop transmitting; the target card is used to obtain the second signal transmitting antenna of the base station. The field strength of the emitted electromagnetic field is sent back to the base station; the base station is configured to obtain a second distance between the target card and the second signal transmitting antenna of the base station according to the field strength returned by the target card; Cycling the base station to obtain a third distance between the target card and the first signal transmitting antenna of the base station and a fourth distance between the target card and the second signal transmitting antenna of the base station;

The base station is further configured to obtain a motion rule of the target card according to the above four distances and a position of the first signal transmitting antenna of the base station and the second signal transmitting antenna of the base station, and compare the motion law of the target card with the motion law set by the program in the base station. Pairing, obtaining a corresponding elevator operation request according to the comparison result and the target card ID and location;

The elevator main control board is configured to receive an elevator operation request sent by the base station, and perform command control and status display on the elevator.

Preferably, the base station further includes:

a first signal transmitting driving module and a second circuit connected in parallel to convert the digital signal to be transmitted into an analog signal, and transmit the signal to the corresponding base station first signal transmitting antenna and the base station second signal transmitting day signal receiving antenna, It is configured to receive an electromagnetic wave signal emitted by the target card, and convert the signal into an analog signal, and transmit the signal to the signal receiving and conditioning module;

a signal receiving and conditioning module, configured to demodulate an analog signal transmitted by the signal receiving antenna, obtain a digital signal, and transmit the digital signal to the base station main control module;

The elevator communication module is configured to realize communication between the base station and the main control board of the elevator, send various elevator requests to the main control board of the elevator, and receive various operation commands of the main control board of the elevator;

The base station main control module is configured to control the signal transmission driving module to radiate an electromagnetic field to the surrounding space through the signal transmitting antenna; and is also used for processing the digital signal converted by the signal receiving conditioning module, and sending a command to the elevator main control board through the elevator communication module , thereby performing an operation on the elevator and completing the function of program setting;

Power Management Module: Converts the input voltage to the voltage required by each module inside the base station.

Preferably, the target card comprises:

a battery for supplying power to each module in the target card;

3D receiving antenna: consisting of coils that are oriented in three directions and perpendicular to each other, for receiving electromagnetic fields from various directions, and respectively converting them into analog electric signals whose space vectors are perpendicular to each other, and transmitting them to the target card signal receiving and conditioning module;

a target card signal receiving and conditioning module, configured to demodulate the received electrical signal into a digital signal, and transmit To the target card master module;

a target card main control module, configured to obtain, according to the received digital signal, a field strength of the location where the target card is located, and send the base station together with the ID of the target card and the battery power information to the base station;

a target card signal transmission modulation module, configured to convert the digital signal to be sent to the base station into an analog signal, and transmit the signal to the target card signal transmitting antenna;

The target card signal transmitting antenna is used to radiate an electromagnetic field to the surrounding space.

Advantageously, said base station master module comprises at least one processor unit and at least one memory unit;

The processor unit is configured to control each module in each base station and implement a logic program function;

The memory unit is configured to store an ID of the target card and an elevator operation authority corresponding thereto. Preferably, the target card master module includes:

Processor: used to coordinate control of work between modules;

An A/D conversion unit for converting an analog signal into a digital signal;

a timer unit for performing timing setting and auxiliary control;

The memory is used to store sample values and data of each operation result.

Preferably, the target card signal transmitting antenna is a single wire or a segment of the wiring on the circuit board.

The invention also provides a control method for a multi-antenna wireless remote elevator calling control system, which is carried out as follows:

a. The base station controls the first signal transmitting antenna of the base station and the second signal transmitting antenna of the base station to periodically radiate to the surrounding space to form an electromagnetic field;

b. When the base station captures the target card in the range of the effective field strength, the target card is awakened;

c. The first signal transmitting antenna of the base station continuously transmits the signal of the first time period, and then stops; the target card obtains the field strength value of the transmitting antenna based on the first signal of the base station, and returns the signal to the base station; the base station obtains the target according to the field strength value. The first distance of the card to the first signal transmitting antenna of the base station;

After the base station obtains the first distance, the second signal transmitting antenna of the base station continuously transmits the signal of the first time period, and then stops; the target card returns the field strength value based on the second signal transmitting antenna of the base station, and obtains the target card to the base station. a second distance of the two signal transmitting antennas; Repeating the above steps, obtaining a third distance of the target card to the first signal transmitting antenna of the base station and a fourth distance of the target card to the second signal transmitting antenna of the base station;

d. The base station obtains the motion trajectory of the target card according to the obtained state combination of the above four distances, and if it is determined that the motion trajectory of the target card belongs to the effective trajectory, it is determined that the target card is to enter the elevator; e, the base station according to the received Target card data, obtaining the ID number of the target card and determining the floor response authority;

f. The base station sends the elevator request signal to the elevator main control board, and controls the corresponding floor of the elevator, and simultaneously displays the elevator operation.

Preferably, when the base station determines that the motion track of the target card belongs to the invalid track according to the obtained state of the four distances, it is determined that the target card does not enter the elevator. The multi-antenna wireless remote elevator summoning control system of the invention has the following advantages:

The invention adopts the active elevator call control mode which originally requires the passenger to participate, and changes it to the control mode in which the base station automatically recognizes and responds, that is, the passenger does not need to touch the button or swipe the card by hand, as long as it is within a certain distance from the elevator. When the passenger operates the target card, the elevator automatically responds to the summoning action; when the customer enters the elevator car, the operation of the corresponding target floor can also be automatically opened, opening up a new field of the wireless remote control elevator.

In the technical solution of the wireless remote elevator call control system, there is a difficulty in how to deal with the cardholder carrying the target card to pass or pass the elevator but no need to take the elevator, but the base station mistakenly thinks that it needs to take the elevator and call the elevator. This caused the elevator to malfunction. The present invention solves the technical problem by adopting a capture mode of a base station with multiple antennas. With the technical solution of the present invention, if the target card is in a mobile state, the base station can obtain the motion law and trajectory of the target card, and the more the base station captures the target card. The motion trajectory makes it more accurate to judge whether the target card has the intention of riding the ladder, so that the target card can be prevented from being close to the base station without the riding advice but causing the erroneous operation of the calling elevator. DRAWINGS

1 is a block diagram of functional blocks of a base station according to the present invention;

2 is a block diagram of functional modules of a target card of the present invention;

3 is a block diagram of a base station main control module of the present invention; 4 is a block diagram of a target card master module of the present invention. detailed description

The above described objects, features and advantages of the present invention will become more apparent from the aspects of the appended claims.

The multi-antenna wireless remote elevator calling control system provided by the embodiment of the invention includes: a base station, a target card, and an elevator main control board or an elevator control system.

As shown in FIG. 1, the figure is a functional block diagram of a base station according to an embodiment of the present invention.

The base station is directly powered by the power supply, and the carrier data signal is set at the frequency, and the data sent by the target card is parsed to determine the effective performance of the target card, and the corresponding elevator control operation is performed according to the setting.

The base station includes parts, namely: two signal transmission driving modules (referred to as a first signal transmission driving module A and a second signal transmission driving module B respectively) and two base station signal transmitting antennas (respectively referred to as base station first signal transmitting antennas) A and base station second signal transmitting antenna B), base station signal receiving antenna 105, base station signal receiving and conditioning module 104, power management module 101, base station master module 103 and elevator communication module 102.

The first signal transmitting antenna A of the base station is connected to the first signal transmitting driving module A, and the second signal transmitting antenna B of the base station is connected to the second signal transmitting driving module B.

The base station signal receiving antenna 105 is connected to the base station signal receiving conditioning module 104.

The base station main control module 103 is connected to the power management module 101, the elevator communication module 102, the first signal transmission driver module A, the second signal transmission driver module, and the base station signal reception conditioning module 104.

The elevator communication module 101 is connected to the elevator control system, that is, the elevator main control board.

The first signal transmission driving module A and the second signal transmission driving module B convert the digital signal of the information to be transmitted into an analog signal capable of driving the corresponding base station first signal transmitting antenna A and base station second signal transmitting antenna B. The signal transmission driving module provided in this embodiment can adopt a small power transmission circuit commonly used in the art, and therefore will not be described in detail herein.

The first signal transmission driving module A and the second signal transmission driving module B respectively transmit analog signals to the base station first signal transmitting antenna A and the base station second signal transmitting antenna B.

The base station first signal transmitting antenna A and the base station second signal transmitting antenna B radiate the received analog signal to the electromagnetic field around the space around the antenna. The base station signal receiving antenna 105 receives the analog magnetic wave signal transmitted by the target card signal transmitting antenna, and converts it into an analog electrical signal for transmission to the base station signal receiving and conditioning module 104.

The signal receiving and processing module 104 demodulates the electrical signal received by the base station signal receiving antenna 105 to obtain a digital signal having a meaning and transmits it to the base station main control module 103. The base station signal reception conditioning module 104 can employ a low power receiving module, such as a UHF receiving module, as is conventional in the art.

The elevator communication module 101 is connected to the base station main control module 103 and the elevator main control board to realize communication between the base station and the elevator main control board, and sends various elevator request signals to the elevator main control board, and receives each sent by the elevator main control board. For the operation command, the elevator communication module in this embodiment may preferentially select a communication mode such as 485 or CAN.

The base station main control module 103 receives the digital signal converted by the base station signal receiving conditioning module 104 and processes it; the control signal transmitting driving module radiates an electromagnetic field to the space, controls the elevator communication module 102 to perform an operation on the elevator, and completes the program setting. Features.

The power management module 101 converts the voltage input from the external base station into the voltage required by each internal module, and provides anti-interference capability for the system. It uses a conventional power management module in the field to provide a 3V or 5V DC power supply.

The base station main control module will be described in detail below with reference to FIG.

Referring to FIG. 2, the figure is a base station main control module provided by an embodiment of the present invention.

The base station main control module 103 provided in this embodiment includes at least one processor unit 103b and one memory unit 103a.

The processor unit 103b is configured to control each module in the base station and implement a logic program function, and the processor unit 103b may preferentially select a 51 series chip or an ARM chip.

The memory unit 103a is configured to store the ID of the target card and the elevator operation authority corresponding thereto. The memory unit 103a may preferably use a memory chip such as EEPROM or FLASH. The structure of the target card provided by the embodiment of the present invention is described in detail below with reference to FIG.

Referring to FIG. 3, the figure is a block diagram of a function module of a target card according to an embodiment of the present invention.

The target card is powered by the button battery. It is normally in the standby state. When receiving the activation signal from the base station, it wakes up from the standby state, receives the data sent by the base station, and obtains the signal strength of the base station. Battery power information, target card ID - and back to the base station. The target card includes seven parts, namely: a battery 301, a 3D receiving antenna 302, a target card main control module 303, a target card signal transmission modulation module 304, a target card signal transmitting antenna 305, a target card signal receiving antenna 306, and a target card signal receiving. Conditioning circuit 307;

The target card signal transmitting antenna 305 is connected to the target card signal transmitting modulation module 304; the target card signal receiving antenna 306 is connected to the target card signal receiving and conditioning module 307; the 3D receiving antenna 302, the battery 301, and the target card signal transmitting modulation module. 304. The target card signal receiving and adjusting module 307 is connected to the target card main control module 303.

Battery 301 provides power to the various modules of the target card.

The 3D receiving antenna 302 is composed of coils that are oriented in three directions and are perpendicular to each other, and can receive electromagnetic fields from various directions in the space, and respectively convert them into analog electric signals whose space vectors are perpendicular to each other, and transmit them to the target card signal receiving and conditioning module 307.

The target card signal receiving conditioning module 307 demodulates the received electrical signal to obtain a digital signal having meaning. In the embodiment, the target card signal receiving and conditioning module 307 can employ a conventional low power receiving module, such as a UHF receiving module.

The target card master module 303 converts the analog electrical signal received by the 3D receive antenna 302 into a digital quantity and derives the true field strength at that location, along with the unique ID of the target card and battery power information, back to the base station.

The target card signal transmission modulation module 304 converts the digital signal to be returned to the base station into an analog signal that can drive the antenna, and transmits the signal to the target card signal transmitting antenna 305. The target card signal transmission modulation module can adopt a conventional low power transmission circuit, such as UHF transmitting circuit.

The target card signal transmitting antenna 305 may be a single wire or a segment of the circuit board. The function of the target card signal transmitting modulation module 304 is to radiate an analog signal to the surrounding space to form an electromagnetic field.

The target card master module will be described in detail below with reference to FIG.

Referring to FIG. 4, the figure is a block diagram of a target card main control module according to an embodiment of the present invention.

The target card master module provided in this embodiment includes:

The processor 401 is configured to coordinate and control work between the modules in the target card;

A/D conversion unit 402: for converting a digital signal into an analog signal;

Timer unit 403: performing timing setting and auxiliary control; The memory 404 is configured to store sample values and data of each operation result.

Each of the above modular units adopts a common module in the technical field, and therefore will not be described in detail herein. The elevator main control board is configured to perform basic command control and status display on the operation of the elevator after receiving the request signal sent by the base station.

Through the data exchange between the base station and the target card, the base station can obtain the target card ID, the battery power information, the distance information (obtainable from the electric field strength) and other information of the field strength range; after obtaining the information, the base station can perform a series of Elevator operation, such as calling outside the hall, corresponding to the authorized floor, etc. The control method for multi-antenna wireless remote elevator calling provided by the present invention will be described below with reference to the accompanying drawings. The specific steps are as follows:

a base station main control module 103 controls the first signal transmission driving module A and the second signal transmission driving module B to periodically radiate electromagnetic fields to the space around the antenna through the base station first signal transmitting antenna A and the base station second signal transmitting antenna B, respectively. .

b. When the base station captures the target field within the effective field strength range:

The first signal transmitting antenna A of the base station continuously transmits the signal of the first time period T1, and then stops; at this time, the target card obtains the field strength value of the transmitting antenna A based on the first signal of the base station, and returns the signal to the base station; The first distance (indicated as: distance Al) that is stuck to the first signal transmitting antenna A of the base station.

After the base station obtains the first distance A1, the second signal transmitting antenna B of the base station continuously transmits the signal of the first time period T1, and then stops; at this time, the target card returns the field strength of the transmitting antenna B based on the second signal of the base station. The second distance of the target card to the base station second signal transmitting antenna B (denoted as: distance B1) is also obtained.

After repeating the above steps, the first signal transmitting antenna A of the base station continues to transmit the signal, and obtains the third distance of the target card to the first signal transmitting antenna A of the base station (recorded as: distance A2), and the target card can be obtained again to the base station. The fourth distance of the two signal transmitting antenna B (denoted as: distance B2).

The combination of the installation position of the first signal transmitting antenna A and the second signal transmitting antenna B of the base station and the states of the first distance A1, the second distance B1, the third distance A2, and the fourth distance B2 may be To determine the motion trajectory of the target card.

c. The base station first signal transmitting antenna A and the base station second signal transmitting antenna B transmit signals in turn, and the four distance values can be continuously obtained. If the target card is in a moving state, the motion law and trajectory of the target card can be obtained by this method, and the more the base station captures the target card motion trajectory, the more accurate it is.

The closer the target card is to the base station, the stronger the received field strength is, and the larger the field strength value after conversion is. The base station compares the motion law of the target card with the programmed motion law, thereby performing the elevator communication module. Corresponding elevator control, so as to avoid the disadvantage that the target card is only caused to be close to the base station.

d. The base station finally confirms the identity and location of all the target cards, sends a signal to the elevator main control board, and the elevator main control board controls and displays the status of the elevator.

If the target card is not within the effective range of the electromagnetic field radiated by the signal transmitting antenna of the base station, it is in a sleep state to save power.

If it enters the effective range of the electromagnetic field radiated by the signal transmitting antenna of the base station, it is activated to perform the above steps.

If the target card leaves the electromagnetic field range radiated by the signal transmitting antenna of the base station, it enters the sleep state again.

In the technical solution of the wireless remote elevator call control system, there is a difficulty in how to deal with the cardholder carrying the target card to pass or pass the elevator but no need to take the elevator, but the base station mistakenly thinks that it needs to take the elevator and call the elevator. This caused the elevator to malfunction. The present invention solves the technical problem by adopting a capture mode of a base station with multiple antennas. With the technical solution of the present invention, if the target card is in a mobile state, the base station can obtain the motion law and trajectory of the target card, and the more the base station captures the target card. The motion trajectory makes it more accurate to judge whether the target card has the intention of riding the ladder, so that the target card can be prevented from being close to the base station without the riding advice but causing the erroneous operation of the calling elevator. The above description is only a preferred embodiment of the invention and is not intended to limit the invention in any way. Although the present invention has been disclosed above in the preferred embodiments, it is not intended to limit the invention. Any person skilled in the art can make many possible variations and modifications to the technical solutions of the present invention by using the methods and technical contents disclosed above, or modify the equivalents of equivalent changes without departing from the scope of the technical solutions of the present invention. Example. Therefore, any modification, equivalent changes, and modifications made to the above embodiments in accordance with the technical spirit of the present invention are still within the scope of protection of the technical solutions of the present invention.

Claims

OP100203 WO 2011/009356 PCT/CN2010/074121 - 11 - Claims

1. A multi-antenna wireless remote elevator call control system, comprising: a base station, a target card, and an elevator main control board;

After obtaining the first distance, the base station main control module is further configured to control the base station second signal transmitting antenna to radiate an electromagnetic field to the surrounding space in a first time period, and then stop transmitting; the target card is used to obtain the second signal transmitting antenna of the base station. The field strength of the emitted electromagnetic field is sent back to the base station; the base station is configured to obtain a second distance between the target card and the second signal transmitting antenna of the base station according to the field strength returned by the target card;

Cycling the base station to obtain a third distance between the target card and the first signal transmitting antenna of the base station and a fourth distance between the target card and the second signal transmitting antenna of the base station;

2. The multi-antenna wireless remote elevator call control system according to claim 1, wherein the base station further comprises:

a first signal transmitting driving module and a second phase connected in parallel to convert the digital signal to be transmitted into an analog signal, and transmit the signal to the corresponding base station first signal transmitting antenna and the base station second signal transmitting antenna;

a signal receiving antenna, configured to receive an electromagnetic wave signal emitted by the target card, and convert the signal into an analog signal, and transmit the signal to the signal receiving and conditioning module;

a signal receiving and conditioning module, configured to demodulate an analog signal transmitted by the signal receiving antenna, obtain a digital signal, and transmit the signal to the base station main control module; OP100203

WO 2011/009356 PCT/CN2010/074121

- 12- Elevator communication module, used to realize communication between the base station and the elevator main control board, send various elevator requests to the elevator main control board, and receive various operation commands of the elevator main control board;

3. The multi-antenna wireless remote elevator call control system according to claim 1, wherein the control system is characterized in that:

The target card includes:

a battery for supplying power to each module in the target card;

a target card signal receiving and conditioning module, configured to demodulate the received electrical signal into a digital signal, and transmit the signal to the target card main control module;

The multi-antenna wireless remote elevator calling control system according to claim 1 or 2, wherein the base station main control module comprises at least one processor unit and at least one memory unit;

The processor unit is configured to control each module in each base station, and implement logic program functions. The memory unit is configured to store an ID of a target card and an elevator operation authority corresponding thereto.

The multi-antenna wireless remote elevator call control system according to claim 1 or 3, wherein the target card main control module comprises: OP100203

WO 2011/009356 PCT/CN2010/074121

-13- Processor: Used to coordinate control of work between modules;

An A/D conversion unit for converting an analog signal into a digital signal;

a timer unit for performing timing setting and auxiliary control;

The memory is used to store sample values and data of each operation result.

6. The multi-antenna wireless remote elevator calling control system according to claim 3, wherein the target card signal transmitting antenna is a single wire or a segment of the wiring on the circuit board.

7. A control method for a multi-antenna wireless remote elevator call control system according to claim 1, wherein the method is as follows:

After the base station obtains the first distance, the second signal transmitting antenna of the base station continuously transmits the signal of the first time period, and then stops; the target card returns the field strength value based on the second signal transmitting antenna of the base station, and obtains the target card to the base station. a second distance of the two signal transmitting antennas;

Repeating the above steps to obtain a third distance from the target card to the first signal transmitting antenna of the base station and a fourth distance from the target card to the second signal transmitting antenna of the base station;

The control method according to claim 7, wherein when the base station determines that the motion track of the target card belongs to an invalid track according to the obtained state combination of the four distances, it is determined that the target card does not enter the elevator. .