CN213011391U

CN213011391U - Visual elevator calling system

Info

Publication number: CN213011391U
Application number: CN202021407122.XU
Authority: CN
Inventors: 王艨
Original assignee: Guangdong Tengyu Guangxun Network Technology Co ltd
Current assignee: Guangdong Tengyu Guangxun Network Technology Co ltd
Priority date: 2020-07-16
Filing date: 2020-07-16
Publication date: 2021-04-20
Anticipated expiration: 2030-07-16

Abstract

The utility model relates to an elevator control field especially relates to a visual elevator calling system. Including elevator control cabinet and house gate quick-witted case to and realize elevator control cabinet and house gate machine case data interaction transmission's floor switch, its characterized in that: the household doorway machine case comprises a visual interphone and a household DTU, the elevator control cabinet comprises an elevator main control board, a protocol conversion board and an elevator DTU, the protocol conversion board and the elevator DTU are connected with the elevator main control board, the floor switch performs data signal interactive transmission with the household DTU and the elevator DTU through an internet of things module, the household doorway machine case and the elevator control cabinet perform audio and video screen stream data transmission by using an RS485 twisted pair, and video or voice call is realized by adopting equipment supporting a PELCO communication protocol. The stable interactive transmission of the signals of the elevator can be realized, and the timely information transmission can be realized.

Description

Visual elevator calling system

Technical Field

The utility model relates to an elevator control field especially relates to a visual elevator calling system.

Background

The elevator is the most important riding tool in the intelligent building, and the safety control of the elevator is an urgent requirement proposed by more and more intelligent community projects. The stable operation control of the elevator also influences the personal safety of passengers, and when the elevator breaks down, the help calling feedback and the repair processing need to be carried out in time. Meanwhile, the existing home security and privacy design is more perfect, and some districts need to obtain the consent of the owner and instruct to get on the door when passengers take the elevator to enter the owner's home, so the interactive communication between the elevator and the home is also important. In the prior art, when an elevator breaks down, an alarm button is generally pressed or a call for help is made. From the early Ethernet transmission scheme and the TCP/IP protocol for digital audio and video transmission, the Wireless USB and WiFi technologies bring great development space for the security market at present, and simultaneously drive the growth of building automation. The wiring scheme is cumbersome. Secondly, when the elevator is overhauled or the system is upgraded, the whole equipment is often required to be checked or replaced, and the elevator line is transformed in a large scale, so that certain risks can be brought; then, considering the number of elevators contained in each building, if a wired network is used, a fixed line needs to be planned, a large amount of equipment is purchased, the installation is time-consuming, a large amount of resources are wasted, and only the visual call function is realized. On the basis of which there is a need for an improved design of the existing elevator call functions.

Disclosure of Invention

The utility model aims to solve the problem of above-mentioned prior art to a certain extent, provide one kind and can realize visual elevator calling system for the stable mutual timely information transmission of the signal of realization elevator conveys.

The utility model discloses the scheme provides a visual elevator calling system, including elevator switch board and house gate machine case to and realize the floor switch of elevator switch board and the mutual transmission of house gate machine case data, house gate machine case includes visual intercom and house DTU, the elevator switch board includes the elevator main control board, and the protocol conversion board and the elevator DTU who are connected with the elevator main control board, the floor switch carries out the mutual transmission of data signal through carrying out between thing allies oneself with network module and house DTU and the elevator DTU, use the RS485 twisted pair to carry out audio-visual screen flow data transmission between house gate machine case and the elevator switch board, adopt the equipment that supports PELCO communication protocol to realize video or voice conversation.

In a further scheme, the visual interphone comprises audio input equipment, an audio processing module, an information storage module and audio output equipment.

In a further aspect, the audio input device includes a microphone.

In a further scheme, the elevator control cabinet comprises an input module and a signal processing module, wherein the signal processing module is arranged on an elevator main control board, and the input module is a keyboard.

In a further scheme, the home DTU includes a directional array antenna, the directional array antenna receives and transmits data with a floor switch, and the transmission power of the directional array antenna is 100 dMb.

In a further scheme, the home DTUs are further provided with directional beams, and each home DTU is provided with 4 transverse directional beams and 8 longitudinal directional beams, wherein the total number of the directional beams is 32.

In a further scheme, the elevator DTU utilizes the array antenna to carry out data communication with the floor switch through a TCP/IP protocol.

In a further scheme, the protocol conversion board is connected with the DTU equipment of the elevator cabinet by using an RS485 twisted pair.

In a further scheme, the elevator main control board comprises an LPC2294 main control chip.

The beneficial effect of this scheme lies in:

1) according to the scheme, a home DTU and an elevator DTU are adopted, the floor switch performs data signal interactive transmission with the home DTU and the elevator DTU through an internet of things module, an RS485 twisted pair line is used between a home door case and an elevator control cabinet to perform audio-video screen stream data transmission, and video or voice call is realized through equipment supporting a PELCO communication protocol. The interactive communication between the elevator personnel and the furniture personnel is realized, and the safety is ensured and the real-time performance is realized.

2) In the existing audio signal transmission, common data transmission modes include RS422, RS485 and RS 232. The audio and video is transmitted by adopting a baseband, so that the cost is relatively low and the signal is relatively stable. Compared with RS422 data transmission, RS485 data transmission needs fewer wires, and only 4 wires are adopted, including 1 audio wire, 2 video wires and 1 bottom wire. Compared with RS232 data transmission, the data transmission is only a few meters, the RS485 transmission distance can reach 1KM, and up to fifty devices can be accessed. And the directional array antenna is used for receiving and transmitting data with the floor switch. 4 gate machines and 4G DTU equipment use 4 vertical direction, 8 horizontal direction, 32 total directional beams, 30 horizontal angle, and carry out data interaction to the switch of the floor. The method has the advantage of reducing interference generation of other antennas, and receiving and transmitting signals with concentrated energy along the beam direction.

3) The protocol conversion board is connected with 4G DTU equipment of the elevator cabinet by using an RS485 twisted pair, and mainly has the functions of converting a control instruction of a user into a control protocol instruction of factory equipment and transmitting the instruction to the elevator main control board; or the elevator state information transmitted by the elevator main control board is packaged and then transmitted to the cabinet 4G DTU equipment. The elevator main control board uses LPC2294 as a main control chip, uses an RTOS operating system, and adopts CAN bus control to replace the traditional RS485 to be connected with an elevator motor in a communication mode, thereby solving the problem of slow response in the traditional method. Compared with the traditional double-speed system, the elevator motor control system adopts a novel use analog quantity control system to optimize the comfort during the operation of the elevator.

Drawings

Fig. 1 is the utility model discloses a visual elevator calling system block diagram.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

In addition to the preferred embodiments described above, other embodiments of the present invention are also possible, and those skilled in the art can make various changes and modifications according to the present invention without departing from the spirit of the present invention, which should fall within the scope of the present invention defined by the appended claims.

As shown in fig. 1, the present invention provides a visual elevator calling system, which comprises an elevator control cabinet, a home gateway machine case, and a floor switch for realizing data transmission between the elevator control cabinet and the home gateway machine case, wherein the home gateway machine case comprises a visual interphone and a home DTU,

a dtu (data Transfer unit) is a wireless terminal device that is used exclusively for converting serial data into IP data or converting IP data into serial data and transmitting the serial data through a wireless communication network. The elevator control cabinet comprises an elevator main control board, a protocol conversion board and an elevator DTU, wherein the protocol conversion board and the elevator DTU are connected with the elevator main control board, the floor switch is in data signal interactive transmission with the home DTU and the elevator DTU through an internet of things module, the home door case and the elevator control cabinet are in audio-video screen stream data transmission by using an RS485 twisted pair, and video or voice communication is realized by adopting equipment supporting a PELCO communication protocol. The visual interphone comprises audio input equipment, an audio processing module, an information storage module and audio output equipment. The audio input device includes a microphone. The elevator control cabinet comprises an input module and a signal processing module, wherein the signal processing module is arranged on an elevator main control board, and the input module is a keyboard. The household DTU comprises a directional array antenna, the directional array antenna receives and sends data with a floor switch, and the transmitting power of the directional array antenna is 100 dMb. The household DTUs are also provided with directional beams, and each household DTU is provided with 4 transverse directional beams and 8 longitudinal directional beams, and the total number of the directional beams is 32. The elevator cabinet DTU utilizes the array antenna to carry out data communication with the floor switch through a TCP/IP protocol. And the directional array antenna is used for receiving and transmitting data with the floor switch. 4 gate machines and 4G DTU equipment use 4 vertical direction, 8 horizontal direction, 32 total directional beams, 30 horizontal angle, and carry out data interaction to the switch of the floor. The method has the advantage of reducing interference generation of other antennas, and receiving and transmitting signals with concentrated energy along the beam direction. The protocol conversion board is connected with the DTU equipment of the elevator cabinet by using an RS485 twisted pair. The elevator main control board comprises an LPC2294 main control chip. The audio processing module is an audio conversion circuit in the scheme, the information storage module can be realized by adopting a single chip microcomputer, and the audio output equipment adopts a loudspeaker.

When the visitor visits, the visitor inputs the number of the visiting room through the keyboard and makes a video call with the person in the room to be visited. And the RS485 twisted pair is used for carrying out audio and video screen stream data transmission, and equipment supporting a PELCO communication protocol is adopted to realize video voice call. When a visitor requests access to a person in a room and calls the room, an instruction is sent to a home DTU through an RS485 twisted pair line by a visual interphone through the input of a keyboard, then the home DTU arranges a data format and sends the data format to a floor switch through a wireless network, the floor switch sends the data packet to control equipment in a specified room, and the control equipment displays request information to the person in the room and triggers a ring when receiving the request; when the room personnel click and agree with the call request, the data returns to the doorway video interphone.

The visual interphone is internally provided with a micro CPU and a storage device, receives command information which is transmitted by each room and allows visitors to access the room, and preferentially selects an elevator to provide for a user by referring to the current running state of each elevator in the storage device, if each elevator is in the running state, the visual interphone calculates the waiting time of the elevator and feeds the waiting time back to the user.

Specifically as shown in fig. 1, this scheme possesses elevator state feedback function, and when the elevator started, or when the elevator arrived the destination floor, the elevator switch board will obtain current floor information through the elevator master control board, calculates the remaining required arrival floor time to inform gate machine equipment through the network again by the floor switch through wireless network. The door phone device stores this information as a reference standard when the customer calls for service.

According to the scheme, a home DTU and an elevator DTU are adopted, the floor switch performs data signal interactive transmission with the home DTU and the elevator DTU through an internet of things module, an RS485 twisted pair line is used between a home door case and an elevator control cabinet to perform audio-video screen stream data transmission, and video or voice call is realized through equipment supporting a PELCO communication protocol. The interactive communication between the elevator personnel and the furniture personnel is realized, and the safety is ensured and the real-time performance is realized.

Claims

1. The utility model provides a visual elevator calling system, includes elevator control cabinet and house gate machine case to and realize elevator control cabinet and house gate machine case data interaction transmission's floor switch, its characterized in that: the household doorway machine case comprises a visual interphone and a household DTU, the elevator control cabinet comprises an elevator main control board, a protocol conversion board and an elevator DTU, the protocol conversion board and the elevator DTU are connected with the elevator main control board, the floor switch performs data signal interactive transmission with the household DTU and the elevator DTU through an internet of things module, the household doorway machine case and the elevator control cabinet perform audio and video screen stream data transmission by using an RS485 twisted pair, and video or voice call is realized by adopting equipment supporting a PELCO communication protocol.

2. A visual elevator call system as set forth in claim 1, wherein: the visual interphone comprises audio input equipment, an audio processing module, an information storage module and audio output equipment.

3. A visual elevator call system as set forth in claim 2, wherein: the audio input device is a microphone.

4. A visual elevator call system as set forth in claim 1, wherein: the elevator control cabinet comprises an input module and a signal processing module, wherein the signal processing module is arranged on an elevator main control board, and the input module is a keyboard.

5. A visual elevator call system as set forth in claim 1, wherein: the household DTU comprises a directional array antenna, the directional array antenna receives and sends data with a floor switch, and the transmitting power of the directional array antenna is 100 dMb.

6. A visual elevator call system as set forth in claim 1, wherein: the household DTUs are also provided with directional beams, and each household DTU is provided with 4 transverse directional beams, 8 longitudinal directional beams and 32 directional beams in total.

7. A visual elevator call system as set forth in claim 1, wherein: the elevator DTU utilizes the array antenna to carry out data communication with the floor switch through a TCP/IP protocol.

8. A visual elevator call system as set forth in claim 1, wherein: the protocol conversion board is in communication connection with the elevator DTU through an RS485 twisted pair.

9. A visual elevator call system as set forth in claim 1, wherein: the elevator main control board comprises an LPC2294 main control chip.