CN205312803U - Elevator user control terminal based on embedded system - Google Patents
Elevator user control terminal based on embedded system Download PDFInfo
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- CN205312803U CN205312803U CN201620069316.0U CN201620069316U CN205312803U CN 205312803 U CN205312803 U CN 205312803U CN 201620069316 U CN201620069316 U CN 201620069316U CN 205312803 U CN205312803 U CN 205312803U
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- Indicating And Signalling Devices For Elevators (AREA)
Abstract
The utility model provides an elevator user control terminal based on embedded system, includes BA interface and user terminal two parts, the BA interface includes power switching circuit, singlechip, signal acquisition and control module, local LCD display module and communication module, the signal acquisition module includes elevator signal interface board, optoelectronic isolation circuit and signal amplification circuit, communication module includes RS -485 communication module and LAN, RS -485 communication circuit and singlechip and LAN difference both -way communication, local LCD display module is connected with the output of singlechip, user terminal includes flush bonding processor, USB interface, UART interface, network interface, memory, touch -sensitive screen and power module. The utility model discloses exhale the elevator outward and show that elevator running state unites two into one to raw and other materials have been saved promptly to the interface that adopts network communication mode to realize elevator and control terminal, have strengthened the intellectuality again.
Description
Technical field
The utility model relates to a kind of elevator control aggregate, in particular to a kind of elevator customer control terminal based on embedded system.
Background technology
Elevator is modern high-rise building, and in order to improve the comfort level that user uses, a lot of building elevator can directly manipulate in user family. But while elevator technology development, elevator manipulation part of registering one's residence adopts and common outer exhales technology, and wiring is complicated, easy break-down. Exhaling the change also never bigger with technique of display outward, most of elevator outer calling is comparatively simple with the design of display elevator operation, adopts the running status of LED display board display elevator, mechanical button call, form dull and unsightly.
Summary of the invention
The purpose of this utility model is to provide a kind of elevator customer control terminal based on embedded system, this control terminal adopts embedded technology and touch-screen, elevator outer calling and display elevator operation are united two into one, and adopt network communication mode to realize the interface of elevator and control terminal, namely save starting material, in turn enhance intellectuality.
As above conceiving, the technical solution of the utility model is: a kind of elevator customer control terminal based on embedded system, it is characterised in that: comprise BA interface and user terminal two portions; Described BA interface comprises Power convert circuit, micro-chip, signals collecting and control module, local LCD display module and the module that communicates, described signal acquisition module comprises elevator signal interface board, photoelectric isolating circuit and signal amplification circuit, described elevator signal interface board comprises elevator operation communication interface and elevator controlling interface, the input terminus of photoelectric isolating circuit receives the output signal of micro-chip, output terminal is connected with elevator controlling interface, the input terminus of signal amplification circuit is connected with elevator operation communication interface, and output terminal is connected with micro-chip; Described communication module comprises RS-485 communication module and local area network, RS-485 communication circuit and micro-chip and local area network and distinguishes two-way communication;Described local LCD display module is connected with the output terminal of micro-chip; Described user terminal comprises embedded processing device, USB interface, UART interface, network interface, storer, touch-screen and power supply module.
The micro-chip of above-mentioned BA interface adopts AT89S52.
The micro-chip of above-mentioned BA interface is connected with watchdog reset circuit.
The local display module of above-mentioned LCD selects character-type liquid crystal display module LCD1602.
Above-mentioned embedded processing device adopts the S3C2440 chip of ARM920T kernel.
Above-mentioned RS-485 communication circuit adopts SN75LBC184.
The utility model has following advantage and positively effect:
1. the utility model can gather the running state information of elevator in real time, mainly comprise the floor number at current place, upper row, descending, full, stop, opening the door, close the door, the real-time information such as inspecting state, and show on local LCD display, adopt MODBUS agreement by BA interface simultaneously, it is sent to protocol conversion device by RS485 bus, the Data Format Transform of MODBUS agreement is become udp protocol by protocol conversion device, by network, data is sent to user terminal. This structure compensate for existing apparatus and directly elevator serial line introduced user, the setup and manage problem caused, and improves the equipment level of informatization and level.
2. user terminal can receive the outer of user and exhale application, and signal is sent to the BA interface of elevator. BA interface sends information to elevator master control board by elevator serial data line, finally completes the transmission of elevator outer calling signal. User not only knows elevator travel position at any time by terminal, just can carry out the calling of elevator simultaneously, substantially increase the efficiency of trip in office or house, and compensate for the drawback that the elevator guest with visitor's control can not carry out selecting layer.
3. user terminal part have employed ARM hardware platform according to the demand of system, ARM hardware platform can complete the touch screen interface of elevator operation information and elevator outer calling in the speed of treater, storage space, communication interface etc., and apply Linux embedded OS, utilize Qt/Embedded to carry out the programdesign of user terminal graphical interfaces, particularly adopt touch-screen to achieve the display of elevator operation and the user operation of elevator outer calling.
Accompanying drawing explanation
Fig. 1 is the utility model principle of work;
Fig. 2 is the utility model structure principle chart;
Fig. 3 is BA interface section hardware module frame chart;
Fig. 4 is BA interface hardware principle block diagram;
Fig. 5 is signal amplification circuit figure;
Fig. 6 is the local display circuit of LCD1602;
Fig. 7 is watchdog module circuit;
Fig. 8 is power module circuitry figure;
Fig. 9 is user terminal hardware block diagram;
Figure 10 is network card design schematic circuit.
Embodiment
Based on an elevator customer control terminal for embedded system, comprise BA interface and user terminal two portions.
: BA interface mainly completes the collection of elevator signal, one, as shown in Figure 3 the function such as conversion and the elevator outer calling signal accepting user terminal of communication protocol. BA interface is connected with the serial communication line of elevator main control board by communication interface board, adopts NETCOM-100IE to carry out protocol conversion, BA interface is communicated with user terminal in local area network. BA interface is made up of Power convert circuit, signals collecting and control module, single chip computer AT 895S2, communication module, local LCD display module, NETCOM-100IE five part.
1, signals collecting and control module complete the collection of elevator operation data and the transmission of elevator outer calling signal. Using elevator signal interface board and the total line interface of serial, wherein one block of plate is responsible for elevator operation data such as floor, the collection running the data such as direction, state of loading, and its address is by group code switch-linear hybrid on sub-plate; Other signal plates are responsible for floor elevator outer calling signal sends to elevator serial communication line. In order to prevent data distortion, enable the elevator operation data collected be sent to AT895S2 micro-chip accurately and carry out resolving and process, this module adds signal amplification circuit as shown in Figure 5.
In order to ensure the one direction transmission of the safety that elevator runs and elevator outer calling signal, have employed the design of Phototube Coupling in elevator controlling part, immunity from interference is strong, and working stability is contactless, it may also be useful to the life-span is long, transmission efficiency height. 5 74LS138 decoders can be utilized, it is possible to carry out the outer of multilayer and exhale signal to send.
2, BA interface micro-chip adopts ATMEL company MCS-51 series monolithic AT89S52.
3, the main function that RS-484 communication module completes is that by RS-485 bus, the running state information of elevator is sent to network. In the circuit, it may also be useful to RS-485 interface chip SN75LBC184, it is a difference transceiver with transient electrical pressure inhibit feature, has a built-in high-energy transient noises protector. Adopt photoelectricity coupling mechanism TLP521 to isolate, make complete contacting without electricity between micro-chip and SN75LBC184, it is to increase the reliability worked.
4, the function of the local display module of LCD is used to show elevator operation in BA interface section, so that elevator is breaking down, maintenance, when system is debugged, explicit checks the current running status of elevator. Selecting character-type liquid crystal display module LCD1602 as local display module in the present system, its circuit is as shown in Figure 6.
5, as shown in Figure 7, adopt MAX813 as system watchdog reset chip in the present system, watchdog reset circuit is as follows, the WDI pin of MAX813 is received the P2.0 pin of AT89S52, P2.0 pin is by Single Chip Microcomputer (SCM) program timing output high level, cause program " race flies " or system paralysis due to reasons such as interference when micro-chip after, the program of " hello dog " pin just can not be performed, the setting timer signal again that dog of guarding the gate is sent here owing to can not get micro-chip, a reset signal will be sent to micro-chip by RST pin, SCM system is resetted, realize the auto-reset function of micro-chip.
6, as shown in Figure 8, Power convert circuit adopts LM2576 series potentiostat as step-down chip, LM2576 series potentiostat is monolithic integrated circuit, excellent performance in linear and load regulation, inside is integrated with frequency compensation device and fixed frequency oscillator, by the reduced number of outside element to minimum, it may also be useful to get up very convenient. In the design, first use LM2576-12 step-down chip that 33V is converted to 12V, re-use LM2576-5 step-down chip and 12V is converted to 5V, for BA interface.
Two, user terminal adopts embedded technology, completes the display of elevator operation and the transmission of elevator outer calling signal. Selecting ARM as embedded hardware platform, built-in Linux, as embedded OS, utilizes QT/Embedded to carry out the exploitation of graphical interfaces.
Controlling part at native system user terminal, adopt the S3C2440 chip of ARM920T kernel as embedded processing device, next designs peripherals and the power supply modules such as USB interface, UART interface, network interface, storer, touch-screen.User terminal hardware block diagram is as shown in dotted portion in Fig. 9.
As shown in Figure 10, system adopts DM9000 as network card chip, it can self-adaptation 10/100M network, RJ45 connecting joint inside contains pickup coil, therefore network transformer need not separately be connect, it may also be useful to common netting twine can connect native system to corresponding router or exchange board.
User terminal adopts Qt/Embedded to carry out graphical interfaces programming, the function mainly completed is the elevator operation information being gathered BA interface by local area network, by elevator operation information displaying on touch-screen, secondly, button is exhaled, it may also be useful to this button can carry out carrying out elevator outer calling operation outside design touch screen elevator.
Principle of work of the present utility model is as shown in Figure 1, 2:
1, BA interface gathers uploading of elevator operation information and elevator outer calling signal. Elevator operation information, through resolving, show that elevator runs running state data, carries out local display by LCD1602, through local area network, elevator operation data is sent to user terminal by communicate module, RS-485/UDP protocol conversion module of RS-485. Elevator operation information spinner to be comprised: uplink state, downstream state, full state, stopping state, door-opened elevator, elevator are closed the door, elevator operating floor data.
2, the function person of the choosing ARM realized according to target as embedded processing device, built-in Linux as peripheral hardware devices such as peripherals and power supply module such as embedded OS, USB interface, UART interface, network interface, storer, touch-screens. Qt/Embedded is adopted to carry out application programming, it is achieved the display of elevator operation and the transmission of elevator outer calling signal.
BA interface is communicated by local area network with user terminal, and this just needs to carry out the conversion of communication protocol. BA interface board adopts MODBUS agreement, by RS-485 bus, elevator operation data is sent to protocol conversion device. In the present system, the running status that elevator is is dynamic, the running status that the collection elevator that user terminal wants real-time is current, so native system is very high to the requirement of real-time, based on above reason, adopt UDP as the network transmission protocol in the present system, because UDP mode is a kind of better simply signalling methods, so it can not increase too much extra traffic, it is provided that the communication speed higher than TCP mode, to ensure the real-time of data packet.
Claims (6)
1. the elevator customer control terminal based on embedded system, it is characterised in that: comprise BA interface and user terminal two portions; Described BA interface comprises Power convert circuit, micro-chip, signals collecting and control module, local LCD display module and the module that communicates, described signal acquisition module comprises elevator signal interface board, photoelectric isolating circuit and signal amplification circuit, described elevator signal interface board comprises elevator operation communication interface and elevator controlling interface, the input terminus of photoelectric isolating circuit receives the output signal of micro-chip, output terminal is connected with elevator controlling interface, the input terminus of signal amplification circuit is connected with elevator operation communication interface, and output terminal is connected with micro-chip; Described communication module comprises RS-485 communication module and local area network, RS-485 communication circuit and micro-chip and local area network and distinguishes two-way communication; Described local LCD display module is connected with the output terminal of micro-chip; Described user terminal comprises embedded processing device, USB interface, UART interface, network interface, storer, touch-screen and power supply module.
2. the elevator customer control terminal based on embedded system according to claim 1, it is characterised in that: the micro-chip of above-mentioned BA interface adopts AT89S52.
3. the elevator customer control terminal based on embedded system according to claim 1, it is characterised in that: the micro-chip of above-mentioned BA interface is connected with watchdog reset circuit.
4. the elevator customer control terminal based on embedded system according to claim 1, it is characterised in that: the local display module of above-mentioned LCD selects character-type liquid crystal display module LCD1602.
5. the elevator customer control terminal based on embedded system according to claim 1, it is characterised in that: above-mentioned embedded processing device adopts the S3C2440 chip of ARM920T kernel.
6. the elevator customer control terminal based on embedded system according to claim 1, it is characterised in that: above-mentioned RS-485 communication circuit adopts SN75LBC184.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620069316.0U CN205312803U (en) | 2016-01-25 | 2016-01-25 | Elevator user control terminal based on embedded system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620069316.0U CN205312803U (en) | 2016-01-25 | 2016-01-25 | Elevator user control terminal based on embedded system |
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| Publication Number | Publication Date |
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| CN205312803U true CN205312803U (en) | 2016-06-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620069316.0U Expired - Fee Related CN205312803U (en) | 2016-01-25 | 2016-01-25 | Elevator user control terminal based on embedded system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113644939A (en) * | 2021-10-13 | 2021-11-12 | 灵动集成电路南京有限公司 | Inter-call communication system and communication control method |
-
2016
- 2016-01-25 CN CN201620069316.0U patent/CN205312803U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113644939A (en) * | 2021-10-13 | 2021-11-12 | 灵动集成电路南京有限公司 | Inter-call communication system and communication control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160615 Termination date: 20170125 |