CN115108412A - Elevator voice linkage control system - Google Patents

Elevator voice linkage control system Download PDF

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Publication number
CN115108412A
CN115108412A CN202210888484.2A CN202210888484A CN115108412A CN 115108412 A CN115108412 A CN 115108412A CN 202210888484 A CN202210888484 A CN 202210888484A CN 115108412 A CN115108412 A CN 115108412A
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CN
China
Prior art keywords
elevator
module
voice
battery pack
battery
Prior art date
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Granted
Application number
CN202210888484.2A
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Chinese (zh)
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CN115108412B (en
Inventor
郑建龙
朱敏
徐国权
王加瑜
周燃豪
潘弘达
徐天成
余军浩
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Zhejiang Wanlihong Technology Co ltd
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Zhejiang Wanlihong Technology Co ltd
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Priority to CN202210888484.2A priority Critical patent/CN115108412B/en
Publication of CN115108412A publication Critical patent/CN115108412A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B1/00Control systems of elevators in general
    • B66B1/02Control systems without regulation, i.e. without retroactive action
    • B66B1/06Control systems without regulation, i.e. without retroactive action electric
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B1/00Control systems of elevators in general
    • B66B1/34Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
    • B66B1/3415Control system configuration and the data transmission or communication within the control system
    • B66B1/3423Control system configuration, i.e. lay-out
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/0006Monitoring devices or performance analysers
    • B66B5/0012Devices monitoring the users of the elevator system
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/0006Monitoring devices or performance analysers
    • B66B5/0018Devices monitoring the operating condition of the elevator system
    • B66B5/0031Devices monitoring the operating condition of the elevator system for safety reasons
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B50/00Energy efficient technologies in elevators, escalators and moving walkways, e.g. energy saving or recuperation technologies

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  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Indicating And Signalling Devices For Elevators (AREA)
  • Elevator Control (AREA)

Abstract

The invention relates to the field of elevators, in particular to an elevator voice linkage control system, which comprises a linkage control terminal, an AI camera, a battery pack intelligent core and a remote control platform, wherein the battery pack intelligent core is arranged in the linkage control terminal; the linkage control terminal and the AI camera are arranged in the elevator; the battery pack intelligent core is arranged on the battery car and is RFID equipment; the linkage control terminal comprises a reader-writer, an indicator light, a signal input module, a communication module, a voice module and a control module; the reader-writer is used for reading related data of the intelligent core of the battery pack; the signal input module is used for being connected with the AI camera; the voice module is used for outputting voice warning information; the control module is used for receiving AI camera data and carrying out identification processing on the data, and is connected with the elevator control system. According to the invention, the battery car can be completely prevented from taking by the shooting of the AI camera and the matching use of the battery pack intelligent core and the reader-writer, so that the potential safety hazard of the battery car entering the elevator is avoided.

Description

Elevator voice linkage control system
Technical Field
The invention relates to the field of elevators, in particular to an elevator voice linkage control system.
Background
Various accidents easily occur when the storage battery car enters the elevator, for example, the storage battery car collides with the elevator door, a fire or even an explosion occurs in the elevator of the storage battery car, the news of the accidents occurring when the storage battery car enters the elevator appears endlessly, in order to avoid the accidents, the storage battery car is strictly forbidden to enter the elevator in most occasions, or a camera device is manually monitored or arranged in the storage battery car, the manual monitoring wastes time and labor, the storage battery car is easily missed to enter the elevator, the camera device is shielded to cause the storage battery car to enter the elevator and lift along with the storage battery car, for example, a small storage battery car exists, the appearance is close to a bicycle, and the storage battery car is easily identified as a bicycle after a main storage battery area is shielded and then placed in the elevator.
The Chinese patent with the authorization announcement number of CN212531872U discloses a storage battery car no-entry elevator, which comprises a detection system, an elevator body and a camera fixedly installed on one side of the top end of the elevator body through screws, wherein the elevator body comprises an elevator key, a sound box and a video player, the detection system comprises a camera acquisition unit, a video data decoding unit, a comparison digital center, an AI data analysis center, an elevator key unit and a sound box power supply unit, and the output end of the AI data analysis center is electrically connected with the elevator key unit, the sound box power supply unit and the video player unit. Has the beneficial effects that: the camera gives AI data analysis center with information transfer, in case detect out storage battery car, elevator button unit control elevator button disconnection power, and stereo set power supply unit control stereo set carries out work, and video player unit control video player carries out work, and whole elevator reasonable in design, information warning sign will propagate the warning to the owner.
However, the above-mentioned known solutions have the following disadvantages: the camera area of making a video recording is sheltered from by the people easily, and especially when people are more and the storage battery car appearance is close the bicycle in the elevator, not discernment or misidentification will lead to the storage battery car to park and go up and down thereupon in the elevator, can't avoid the storage battery car to go into the elevator completely, has the potential safety hazard.
Disclosure of Invention
The invention aims to provide an elevator voice linkage control system capable of preventing a battery car from entering an elevator, aiming at the problems in the background art.
On one hand, the invention provides an elevator voice linkage control system which comprises a linkage control terminal, an AI camera, a battery pack intelligent core and a remote control platform;
the linkage control terminal and the AI camera are arranged in the elevator, and the linkage control terminal is in data transmission connection with the AI camera; the battery pack intelligent core is arranged on the battery car or a battery of the battery car, and the battery pack intelligent core is RFID equipment; the remote control platform is in wireless communication connection with the linkage control terminal;
the linkage control terminal comprises a reader-writer, an indicator light, a signal input module, a communication module, a voice module and a control module;
the reader-writer is used for reading related data of the intelligent core of the battery pack; the indicating lamp is used for indicating whether a vehicle with or without a battery enters the elevator; the signal input module is used for being connected with the AI camera and transmitting a data signal to the control module; the communication module is used for being connected with the remote control platform; the voice module is used for outputting voice warning information; the control module is used for receiving AI camera data, identifying the data, identifying whether the storage battery car exists in the camera shooting range, and simultaneously is connected with the elevator control system to complete the opening and closing control of the elevator door.
Preferably, battery package intelligence core includes epitheca and inferior valve, and the cavity casing is constituteed to epitheca and inferior valve, sets up 500mAh lithium cell, chip and antenna in the cavity casing.
Preferably, the indicating lamp comprises two states of green light and red light, no green light is emitted when the storage battery car enters the elevator, and the red light is emitted when the storage battery car enters the elevator.
Preferably, the linkage control terminal further comprises a signal output module; the signal output module is used for being externally connected with other equipment capable of receiving high and low level signals.
Preferably, the linkage control terminal further comprises a voice pickup module; the voice pickup module is used for picking up surrounding sound to activate voice control, the voice pickup module is connected with the control module in a signal transmission mode, and meanwhile the control module is connected with the elevator control system to achieve floor key control of the elevator.
Preferably, the intelligent battery pack monitoring system further comprises a hall alarm, wherein a reader-writer is arranged in the hall alarm and used for reading related data of the intelligent battery pack core, the hall alarm is arranged at the entrance and exit positions of a specific place, such as a community entrance and exit and a market entrance and exit, and the hall alarm is in wireless communication connection with the remote control platform.
Preferably, the battery pack intelligent core is further linked with the e bank for completing parking payment in a specific area.
On the other hand, the invention provides a control method of an elevator voice linkage control system, which comprises the following steps: s1, adding a battery pack intelligent core for the battery car entering the specific area; s2, after entering an elevator, the battery car with the battery pack intelligent core is activated by a radio frequency signal sent by the reader-writer, the battery pack intelligent core is in a working state, the reader-writer reads and writes related information to judge that the battery car enters the elevator, and meanwhile, the AI camera works;
s3, the control module transmits a signal to the elevator control system to control the elevator door to open and close, so that the elevator cannot lift, and meanwhile the control module sends out voice warning information through the voice module to prompt a person to push the battery car away from the elevator; s4, if the AI camera shoots that the battery car enters the elevator, but the reader-writer of the linkage control terminal does not receive the related data of the battery pack intelligent core, and the battery car entering the specific area is not provided with the battery pack intelligent core, the control module contacts the remote control platform through the communication module to remind related personnel to install the battery pack intelligent core on the battery car.
Compared with the prior art, the invention has the following beneficial technical effects: through the shooting of AI camera and the cooperation use of battery package intelligence core and read write line, do not need artifical control investigation promptly, can prevent again completely that storage battery car from getting into the elevator and along with the elevator lift, even storage battery car has got into the elevator smoothly, the lift-cabin door can not close more can not start the lift to the potential safety hazard of storage battery car income elevator has been avoidd. In addition, the elevator rider can replace a manual key through a voice function, and the use is more convenient.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a flow chart of a control method of the voice linkage control system of the elevator provided by the invention;
fig. 3 is a schematic structural diagram of a battery pack smart core.
Reference numerals: 1. an upper shell; 2. a lower shell.
Detailed Description
Example one
As shown in fig. 1 and 3, the voice linkage control system for the elevator provided by the invention comprises a linkage control terminal, an AI camera, a battery pack intelligent core and a remote control platform;
the linkage control terminal and the AI camera are arranged in the elevator, and the linkage control terminal is in data transmission connection with the AI camera; the battery pack intelligent core is arranged on the battery car or the battery of the battery car, the battery pack intelligent core is RFID equipment, the battery pack intelligent core comprises an upper shell 1 and a lower shell 2, the upper shell 1 and the lower shell 2 form a cavity shell, and a 500mAh lithium battery, a chip and an antenna are arranged in the cavity shell; the remote control platform is in wireless communication connection with the linkage control terminal;
the linkage control terminal comprises a reader-writer, an indicator light, a signal input module, a communication module, a voice module and a control module;
the reader-writer is used for reading related data of the intelligent core of the battery pack; the indicating lamp is used for indicating whether a battery-free vehicle enters the elevator, the indicating lamp comprises a green light state and a red light state, the green light is lightened when no battery-free vehicle enters the elevator, and the red light is lightened when the battery-free vehicle enters the elevator; the signal input module is used for being connected with the AI camera and transmitting a data signal to the control module; the communication module is used for being connected with the remote control platform; the voice module is used for outputting voice warning information; the control module is used for receiving AI camera data, identifying the data, identifying whether the storage battery car exists in the camera shooting range, and simultaneously is connected with the elevator control system to complete the opening and closing control of the elevator door.
The working principle is as follows: the intelligent core with the battery pack is additionally arranged on the battery car in a specific area, such as the battery cars in districts, schools and other places, in order to prevent the battery car from not being provided with the intelligent core with the battery pack, the intelligent core with the battery pack can be installed by adopting an access limiting means or an incentive mechanism for induced installation, after the battery car with the intelligent core with the battery pack enters an elevator, the battery car is activated by a radio frequency signal sent by a reader-writer, the intelligent core with the battery pack is in a working state, the reader-writer reads related information to judge that the battery car enters the elevator, meanwhile, an AI camera works, a control module transmits a signal to an elevator control system to control the opening and closing of an elevator door, so that the elevator cannot carry out lifting work, simultaneously, the control module sends out voice warning information through a voice module to prompt personnel to push the battery car away from the elevator, if the AI camera shoots that the battery car enters the elevator but the reader-writer of a linkage control terminal does not receive the related data of the intelligent core with the battery pack, when the battery car entering the specific area is not provided with the intelligent core of the battery pack according to the instruction, the control module contacts the remote control platform through the communication module to remind relevant personnel of installing the intelligent core of the battery pack on the battery car.
In this embodiment, the cooperation of shooting and battery package intelligence core and read write line through the AI camera is used, does not need artifical control investigation promptly, can prevent again completely that the storage battery car from getting into the elevator and along with the elevator goes up and down, even the storage battery car has got into the elevator smoothly, the lift-cabin door can not close more can not start the lift to avoid the potential safety hazard that the storage battery car got into the elevator.
Example two
As shown in fig. 1 and 3, the voice linkage control system for the elevator provided by the invention comprises a linkage control terminal, an AI camera, a battery pack intelligent core, a hall alarm and a remote control platform;
the linkage control terminal and the AI camera are arranged in the elevator, and the linkage control terminal is in data transmission connection with the AI camera; the intelligent core of the battery pack is arranged on the battery car or a battery of the battery car, the intelligent core of the battery pack is RFID equipment, the intelligent core of the battery pack comprises an upper shell 1 and a lower shell 2, the upper shell 1 and the lower shell 2 form a cavity shell, a 500mAh lithium battery, a chip and an antenna are arranged in the cavity shell, and the intelligent core of the battery pack is linked with the e-bank to finish parking payment in a specific area; the remote control platform is in wireless communication connection with the linkage control terminal; the hall alarm is internally provided with a reader-writer which is used for reading related data of the intelligent core of the battery pack, the hall alarm is arranged at the entrance and exit positions of a specific place, such as a community entrance and exit and a mall entrance and exit, and the hall alarm is in wireless communication connection with the remote control platform;
the linkage control terminal comprises a reader-writer, an indicator light, a signal input module, a signal output module, a voice pickup module, a communication module, a voice module and a control module;
the reader-writer is used for reading related data of the intelligent core of the battery pack; the indicating lamp is used for indicating whether a battery-free vehicle enters the elevator, the indicating lamp comprises a green light state and a red light state, the green light is lightened when no battery-free vehicle enters the elevator, and the red light is lightened when the battery-free vehicle enters the elevator; the signal input module is used for being connected with the AI camera and transmitting a data signal to the control module; the signal output module is used for being externally connected with other equipment capable of receiving high and low level signals; the voice pickup module is used for picking up surrounding sound to activate voice control, the voice pickup module is in signal transmission connection with the control module, and meanwhile the control module is also connected with an elevator control system to realize floor key control of the elevator; the communication module is used for being connected with the remote control platform; the voice module is used for outputting voice warning information; the control module is used for receiving AI camera data, identifying the data, identifying whether the storage battery car exists in the camera shooting range, and simultaneously is connected with the elevator control system to complete the opening and closing control of the elevator door.
The working principle is as follows: the battery car with the intelligent core is installed by means of entrance and exit limitation, such as entrance-mounted hall alarms, only the battery car with the intelligent core can pass through the entrance-mounted battery car, or a reward mechanism is adopted for inducing installation, after the battery car with the intelligent core is placed into an elevator, the battery car is activated by a radio frequency signal sent by a reader-writer, the intelligent core is in a working state, the reader-writer reads related information to judge that the battery car enters the elevator, an AI camera works, a control module transmits a signal to an elevator control system to control the opening and closing of an elevator door, so that the elevator cannot be lifted and lowered, and meanwhile, the control module sends voice warning information through a voice module to prompt personnel to push the battery car away from the elevator, if the AI camera shoots that the battery car enters the elevator but a reader-writer of the linkage control terminal does not receive the related data of the battery pack intelligent core, the battery car entering the specific area is not provided with the battery pack intelligent core according to the description, and then the control module contacts the remote control platform through the communication module to remind related personnel to install the battery pack intelligent core on the battery car. In addition, the elevator rider can also awaken up voice control through the voice pickup module after entering the elevator, thereby selecting the floor more conveniently without manually pressing an elevator button, and the elevator is friendly to special people, such as the blind, people who are difficult to press keys when sitting on a wheelchair and people who have inconvenient hands of holding things with both hands, and the elevator is more humanized in use.
In this embodiment, the shooting through the AI camera and the cooperation of battery package intelligence core and read write line are used, do not need artifical control investigation promptly, can prevent again completely that the storage battery car from getting into the elevator and going up and down along with the elevator, even the storage battery car has got into the elevator smoothly, the lift-cabin door can not close more can not start the lift to the potential safety hazard of storage battery car income elevator has been avoidd. In addition, the elevator rider can replace a manual key through a voice function, and the use is more convenient.
EXAMPLE III
As shown in fig. 2, the control method based on the above-mentioned elevator voice linkage control system embodiment includes the following steps:
s1, adding a battery pack intelligent core for the battery car entering the specific area;
s2, after entering an elevator, the battery car with the battery pack intelligent core is activated by a radio frequency signal sent by the reader-writer, the battery pack intelligent core is in a working state, the reader-writer reads and writes related information to judge that the battery car enters the elevator, and meanwhile, the AI camera works;
s3, the control module transmits a signal to the elevator control system to control the elevator door to open and close, so that the elevator cannot lift, and meanwhile the control module sends out voice warning information through the voice module to prompt a person to push the battery car away from the elevator;
s4, if the AI camera shoots that the battery car enters the elevator, but the reader-writer of the linkage control terminal does not receive the related data of the battery pack intelligent core, and the battery car entering the specific area is not provided with the battery pack intelligent core, the control module contacts the remote control platform through the communication module to remind related personnel to install the battery pack intelligent core on the battery car.
In this embodiment, the cooperation of shooting and battery package intelligence core and read write line through the AI camera is used, does not need artifical control investigation promptly, can prevent again completely that the storage battery car from getting into the elevator and along with the elevator goes up and down, even the storage battery car has got into the elevator smoothly, the lift-cabin door can not close more can not start the lift to avoid the potential safety hazard that the storage battery car got into the elevator.
The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.

Claims (8)

1. An elevator voice linkage control system is characterized by comprising a linkage control terminal, an AI camera, a battery pack intelligent core and a remote control platform;
the linkage control terminal and the AI camera are arranged in the elevator, and the linkage control terminal is in data transmission connection with the AI camera; the battery pack intelligent core is arranged on the battery car or a battery of the battery car, and the battery pack intelligent core is RFID equipment; the remote control platform is in wireless communication connection with the linkage control terminal;
the linkage control terminal comprises a reader-writer, an indicator light, a signal input module, a communication module, a voice module and a control module;
the reader-writer is used for reading related data of the intelligent core of the battery pack; the indicating lamp is used for indicating whether a battery-free vehicle enters the elevator; the signal input module is used for being connected with the AI camera and transmitting a data signal to the control module; the communication module is used for being connected with the remote control platform; the voice module is used for outputting voice warning information; the control module is used for receiving AI camera data, identifying the data, identifying whether the storage battery car exists in the camera shooting range, and simultaneously is connected with the elevator control system to complete the opening and closing control of the elevator door.
2. The elevator voice linkage control system according to claim 1, wherein the battery pack intelligent core comprises an upper shell (1) and a lower shell (2), the upper shell (1) and the lower shell (2) form a cavity shell, and a 500mAh lithium battery, a chip and an antenna are arranged in the cavity shell.
3. The elevator voice linkage control system according to claim 1, wherein the indicator light comprises two states of green light and red light, no battery car lights up the green light when entering the elevator, and the battery car lights up the red light when entering the elevator.
4. The elevator voice linkage control system according to claim 1, wherein the linkage control terminal further comprises a signal output module; the signal output module is used for being externally connected with other equipment capable of receiving high and low level signals.
5. The elevator voice coordinated control system according to claim 1, characterized in that the coordinated control terminal further comprises a voice pickup module; the voice pickup module is used for picking up surrounding sound to activate voice control, the voice pickup module is connected with the control module in a signal transmission mode, and meanwhile the control module is connected with the elevator control system to achieve floor key control of the elevator.
6. The elevator voice linkage control system according to claim 1, further comprising a hall alarm, wherein a reader-writer is arranged in the hall alarm, the reader-writer is used for reading related data of the battery pack intelligent core, the hall alarm is arranged at an entrance and exit position of a specific place, such as a community entrance and an exit and an entrance of a shopping mall, and the hall alarm is in wireless communication connection with the remote control platform.
7. The elevator voice linkage control system according to claim 1, wherein the battery pack intelligent core is further linked with an e bank for completing parking payment in a specific area.
8. The elevator voice linkage control system according to claim 1, wherein the control method of the control system comprises the steps of:
s1, adding a battery pack intelligent core for the battery car entering the specific area;
s2, after entering an elevator, the battery car with the battery pack intelligent core is activated by a radio frequency signal sent by the reader-writer, the battery pack intelligent core is in a working state, the reader-writer reads and writes related information to judge that the battery car enters the elevator, and meanwhile, the AI camera works;
s3, the control module transmits a signal to the elevator control system to control the elevator door to open and close, so that the elevator cannot lift, and meanwhile the control module sends out voice warning information through the voice module to prompt a person to push the battery car away from the elevator;
s4, if the AI camera shoots that the battery car enters the elevator, but the reader-writer of the linkage control terminal does not receive the related data of the battery pack intelligent core, and the battery car entering the specific area is not provided with the battery pack intelligent core, the control module contacts the remote control platform through the communication module to remind related personnel to install the battery pack intelligent core on the battery car.
CN202210888484.2A 2022-07-27 2022-07-27 Elevator voice linkage control system Active CN115108412B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN210836279U (en) * 2019-12-10 2020-06-23 上海控江中学附属民办学校 Access control device of battery car
CN111661725A (en) * 2020-05-29 2020-09-15 苏州益耕科技有限公司 Electric vehicle blocking-in method and system for elevator
CN112699715A (en) * 2019-10-23 2021-04-23 无锡复创机器人有限公司 Storage battery car upstairs intelligent management and control system based on deep learning
CN113772510A (en) * 2021-09-18 2021-12-10 天津人华电梯设备有限公司 Elevator battery fire prevention system
CN113888790A (en) * 2021-08-13 2022-01-04 兰州飞天网景信息产业有限公司 Wisdom district electric motor car management and control system
CN216248859U (en) * 2021-12-03 2022-04-08 孙志刚 Electric vehicle or battery upstairs monitoring system based on Internet of things
CN114332764A (en) * 2021-12-27 2022-04-12 北京科技大学 Identification and detection method and system for preventing shielded storage battery from entering closed space
CN217034872U (en) * 2022-04-19 2022-07-22 深圳市菲尼基科技有限公司 Storage battery car early warning equipment

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112699715A (en) * 2019-10-23 2021-04-23 无锡复创机器人有限公司 Storage battery car upstairs intelligent management and control system based on deep learning
CN210836279U (en) * 2019-12-10 2020-06-23 上海控江中学附属民办学校 Access control device of battery car
CN111661725A (en) * 2020-05-29 2020-09-15 苏州益耕科技有限公司 Electric vehicle blocking-in method and system for elevator
CN113888790A (en) * 2021-08-13 2022-01-04 兰州飞天网景信息产业有限公司 Wisdom district electric motor car management and control system
CN113772510A (en) * 2021-09-18 2021-12-10 天津人华电梯设备有限公司 Elevator battery fire prevention system
CN216248859U (en) * 2021-12-03 2022-04-08 孙志刚 Electric vehicle or battery upstairs monitoring system based on Internet of things
CN114332764A (en) * 2021-12-27 2022-04-12 北京科技大学 Identification and detection method and system for preventing shielded storage battery from entering closed space
CN217034872U (en) * 2022-04-19 2022-07-22 深圳市菲尼基科技有限公司 Storage battery car early warning equipment

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