CN207367010U - A kind of personnel channel's master ＆ slave control circuit - Google Patents
A kind of personnel channel's master ＆ slave control circuit Download PDFInfo
- Publication number
- CN207367010U CN207367010U CN201721357073.1U CN201721357073U CN207367010U CN 207367010 U CN207367010 U CN 207367010U CN 201721357073 U CN201721357073 U CN 201721357073U CN 207367010 U CN207367010 U CN 207367010U
- Authority
- CN
- China
- Prior art keywords
- channel controller
- channel
- master
- infrared
- personnel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Selective Calling Equipment (AREA)
- Optical Communication System (AREA)
Abstract
The utility model provides a kind of personnel channel's master ＆ slave control circuit, including two channel controllers, is set as master controller pattern by toggle switch or includes central processing unit, the information processing for channel control system from director mode, each channel controller；Master-slave communication module, for the communication between the control board of principal and subordinate's channel controller；Infrared point detection module, the flow of personnel situation for testing staff's channel interior；Serial communication module, communicates for debugging circuit board and with host computer；CAN communication module, is acted for connecting movement controller with the driving gate wing；Input/output module, for various status indicator lamps inside control passage and receives various external switch signals, and outwards output system status information.Using master-slave control mode, it is only necessary to which a cable can complete back panel wiring, realize the simplification of personnel channel's back panel wiring, bring great convenience to the extension of project implementation, maintenance and later stage.
Description
Technical field
Security protection gate control technology field is the utility model is related to, more particularly to a kind of personnel channel's master ＆ slave control electricity
Road.
Background technology
Personnel channel, also known as pass gates, for managing the stream of people and specification pedestrian discrepancy, are mainly used in high ferro, subway lock
Machine system, charge ticket check gate system, entry-exit management system, scenic spot, industrial park et al. the bigger place of flow.
In the prior art, a personnel channel is to realize control by channel controller, during user's expanded function, such as
Two-way authorization is passed through, indicator light extension, authorization signal extension, it is necessary to increase power cable, communication cable and input-output line
Cable, these bring site operation the project for completion of having constructed very big inconvenience, especially early period, and Function Extension is just very numb
It is tired.
Therefore, in order to meet user demand, offer convenience to user, the prior art needs to improve.
Utility model content
Technical problem to be solved in the utility model is：In order to overcome the shortcomings of expanded function in the prior art, this reality
With a kind of personnel channel's master ＆ slave control circuit of new offer.
The utility model solves its technical problem technical solution to be taken：A kind of personnel channel's master ＆ slave control electricity
Road, including two channel controllers, channel controller is set as main director mode or from director mode by toggle switch,
And thering is one to be set as that master controller pattern is main channel controller in described two channel controllers, another is set as from control
Device pattern processed is from channel controller, and each channel controller includes central processing unit, the letter for channel control system
Breath processing；
Master-slave communication module, for main channel controller and from the communication between the control board of channel controller, and
Data are synchronous；
Infrared point detection module, the flow of personnel situation for testing staff's channel interior；
Serial communication module, communicates for the control board debugging of channel controller and with host computer；
Network communication module, communicates for TCP/IP；
CAN communication module, for connecting movement controller, to control the motor driving gate wing to act；
Input/output module, for various status indicator lamps, acoustic-optic alarm, the various outsides of reception inside control passage
Switching signal, and outwards output system status information.
Further, in order to reduce number of cables during internal connection, the master-slave communication module uses 8P nets on hardware
Line connects main channel controller and is inserted into the main side port JX1 of main channel controller from channel controller, described cable one end, separately
One end insertion is used for transmission infrared emission information and CAN communication information from channel controller from end port JX2, the cable；
The infrared emission information of main channel controller is sent to from channel controller by cable, infrared by being exported from channel controller
Transmitting information is exported by light-coupled isolation, driving infrared emission plate transmitting infrared detection signal.
Specifically, the 8P cables be connected to main side port JX1 signal include CAN communication signal end CAN0L and
CAN0H, main channel controller power source signal end VDD5V and GNDD, infrared emission information signal end A0+, A1+ and A2+, wherein,
CAN0L and CAN0H is connected to the central processor CPU of main channel controller by CAN transceiving chips；
The signal that the 8P cables are connected to from end port JX2 includes CAN communication signal end CAN0L and CAN0H, from passage
Controller power source signal end VCC_IN and GND_IN, infrared emission information signal end A0-, A1- and A2-, wherein, CAN0L and
CAN0H is connected to the central processor CPU from channel controller；
VDD5V, GNDD, A0+, A1+ and A2+ are reached after cable from channel controller at main channel controller signals end,
And corresponding with from channel controller signal end VCC_IN, GND_IN, A0-, A1- and A2- respectively, A0-, A1- and A2- points of signal end
Be not converted into successively after exclusion RP16, optical coupling isolation circuit OP1, OP2 and OP3 infrared emission signal E00-, E01- and
E02-；
Main channel controller power source signal end VDD5V and GNDD with from channel controller power supply signal end VCC_IN and GND_
Isolated between IN using optical coupling isolation circuit OP1, OP2 and OP3.
Further, the infrared point detection module includes infrared receiver port and the infrared hair being arranged on channel controller
Port is penetrated, and the infrared receiver port of the main channel controller is effective, it is described to have from the infrared emission port of channel controller
Effect；
The infrared point information that the infrared receiver port is used to gather infrared emission port is sent to main channel controller
Central processor CPU, and analyzed and processed by CPU, judge flow of personnel situation；The infrared emission port is used to launch red
Outer detection signal.
Further, the serial communication module includes a debugging circuit board serial ports and two host computers communication serial ports, and three
A serial ports is integrated into above a port.
Specifically, the input/output module includes the output of 15 tunnels and the input of 8 tunnels, and described output and input all with
Central processor CPU isolates, wherein, the output of 9 tunnels uses to be conventional, and two group of 2 tunnel in addition inputs the output of 2 tunnels and one group of 2 tunnel inputs
Used to be reserved, also have the input of 2 tunnels and 2 tunnels to export and used to gate inhibition, and the 2 tunnels output of gate inhibition exports for relay.Output letter
Number control relay exports again, and relay output is uncharged, and output is uncharged on-off model.Main channel controls
Device is also connected with LCD touch screen.
Operation principle：
The master ＆ slave control circuit of the utility model is installed in same personnel channel, main channel controller and from passage control
Device processed is connected using 8P cables.
After startup, main channel controller on the one hand output infrared emission information, and sent to from passage and controlled by cable
Device, is exported by light-coupled isolation by the infrared emission information exported from channel controller, drives the infrared emission of infrared emission plate
Launch infrared detection signal in port；Meanwhile the infrared receiver port of main channel controller is effective, the transmitting of infrared emission port is received
Infrared detection signal；When infrared receiver port can receive infrared detection signal, illustrate no personnel by passage, when
When infrared receiver port cannot receive infrared detection signal, illustrate there are personnel to be detected by passage, infrared receiver port
Above- mentioned information send to main channel control central processor CPU, so as to judge the infrared receiver port of main channel controller
The infrared point information of collection, to judge personnel's current intelligence in pedestrian place channel position, and passage.
In addition, the information of the network communication module, CAN communication module and input/output module from channel controller all passes through
CAN communication cable on cable passes to main channel controller.
During normal mounting, multipair infrared receiver port and infrared is installed along the length direction of passage in whole personnel channel
Emission port, to obtain position of the personnel in passage in real time, and infrared receiver port and infrared emission port can be
One layer can also install multilayer by height.
The beneficial effects of the utility model are：A kind of personnel channel's master ＆ slave control circuit provided by the utility model, uses
Changeable master-slave control mode, it is only necessary to which a cable can complete back panel wiring, realize personnel channel's back panel wiring
Simplify, bring great convenience to the extension of project implementation, maintenance and later stage.
Brief description of the drawings
The utility model is described in further detail with reference to the accompanying drawings and examples.
Fig. 1 is the structure diagram of the utility model master ＆ slave control circuit；
Fig. 2 is that the utility model master ＆ slave control circuit extends out functional block diagram；
Fig. 3 is the master-slave communication module circuit schematic of the utility model master ＆ slave control circuit；
Fig. 4 is the infrared point detection circuit schematic diagram of the utility model master ＆ slave control circuit；
Fig. 5 is the serial communication module circuit diagram of the utility model master ＆ slave control circuit；
Fig. 6 is the input/output module circuit diagram of the utility model master ＆ slave control circuit.
Embodiment
The utility model is described in detail presently in connection with attached drawing.This figure is simplified schematic diagram, only in a schematic way
Illustrate the basic structure of the utility model, therefore it only shows the composition related with the utility model.
As shown in figs 1 to 6, a kind of personnel channel's master ＆ slave control circuit of the utility model, including two passage controls
Device, channel controller is set as main director mode or from director mode by toggle switch, and described two passages control
There is one to be set as that master controller pattern is main channel controller in device, another is set as that from director mode be from passage control
Which kind of control model device processed, toggle switch are for selection circuit plate.Each channel controller includes central processing unit
CPU, master-slave communication module, infrared point detection module, serial communication module, network communication module, CAN communication module and input are defeated
Go out module.
Central processor CPU, the information processing for channel control system；Central processor CPU uses model
The ARM7 chips of LPC2387；Network communication module, communicates for TCP/IP；CAN communication module, for connecting movement controller
For controlling the motor driving gate wing to act；
Master-slave communication module, for main channel controller and from the communication between the control board of channel controller, and
Data are synchronous；The master-slave communication module connects main channel controller and from channel controller on hardware using 8P cables, red
Outer transmitting light curtain is connect from channel controller, and infrared receiver light curtain connects main channel controller, and LCD touch screen connects main channel controller and uses
In debugging function；What the external module that other parts master-slave circuit plate connects was just as.
As shown in figure 3, the main side port JX1 of cable one end insertion main channel controller, the other end are inserted into from passage
Controller is used for transmission infrared emission information and CAN communication information from end port JX2, the cable；Main channel controller
Infrared emission information is sent to from channel controller by cable, passes through light by the infrared emission information exported from channel controller
Coupling isolation output, driving infrared emission plate transmitting infrared detection signal.
The signal that the 8P cables are connected to main side port JX1 includes CAN communication signal end CAN0L and CAN0H, main channel
Controller power source signal end VDD5V and GNDD, infrared emission information signal end A0+, A1+ and A2+, wherein, CAN0L and CAN0H
The central processor CPU of main channel controller is connected to by CAN transceiving chips；
The signal that the 8P cables are connected to from end port JX2 includes CAN communication signal end CAN0L and CAN0H, from passage
Controller power source signal end VCC_IN and GND_IN, infrared emission information signal end A0-, A1- and A2-, wherein, CAN0L and
CAN0H is connected to the central processor CPU from channel controller；
VDD5V, GNDD, A0+, A1+ and A2+ are reached after cable from channel controller at main channel controller signals end,
And corresponding with from channel controller signal end VCC_IN, GND_IN, A0-, A1- and A2- respectively, A0-, A1- and A2- points of signal end
Be not converted into successively after exclusion RP16, optical coupling isolation circuit OP1, OP2 and OP3 infrared emission signal E00-, E01- and
E02-；
Main channel controller power source signal end VDD5V and GNDD with from channel controller power supply signal end VCC_IN and GND_
Isolated between IN using optical coupling isolation circuit OP1, OP2 and OP3.
Three optocouplers use the chip of model TLP2362, and the power supply of optocoupler input is connected with VCC_IN and GND_IN,
Optocoupler output power supply is connected with VDD5V and GNDD, and signal E00-, E01- and E02- for exporting pass through pull-up resistor respectively
R19, R18 and R17 are connected to VDD5V.
As shown in figure 4, infrared point detection module, the flow of personnel situation for testing staff's channel interior；It is described infrared
Point detection module includes infrared receiver port and the infrared emission port being arranged on channel controller, and the main channel controls
The infrared receiver port of device is effective, described effective from the infrared emission port of channel controller；The infrared receiver port is used for
The infrared point information of collection infrared emission port is sent to the central processor CPU of main channel controller, and is analyzed by CPU
Processing, judges flow of personnel situation；The infrared emission port is used to launch infrared detection signal.Transmitting address is made by software
With reception address synchronization, the synchronization of data is realized.
Terminal J4 is infrared receiver port, and the infrared signal of reception is inputted by input terminal RU2, RU3, RU4 and RU5, so
Draw successively by the input of pull-up resistor resistance row RP12, bus transceiver U12 and resistance row RP11 into main channel controller CPU afterwards
Foot P1_26, P1_27, P1_28 and P1_29, judge the flow of personnel situation inside personnel channel by the analysis of main channel controller,
And export signal and indicated by status indicator lamp, acoustic-optic alarm, meanwhile, the wing action of control door.
CPU output pins P1_19, P1_20 and P1_21 output infrared emission information of main channel controller are successively by row
Hinder RP15 and bus transceiver U14 after export infrared emission information to master-slave communication module infrared emission information signal end A0+,
A1+ and A2+, is then converted into infrared emission by being reached after master-slave communication module from channel controller, infrared emission information
Signal E00-, E01- and E02-, then switch to infrared emission signal by bus transceiver U15 and infrared emission is connect by terminal J7
Plate.In addition PWM modulation signal PULSE switchs to infrared pulse adjustment signal warp by the CPU from channel controller circuit board by U15
Cross terminal J7 and be connected to infrared emission plate.
Bus transceiver U12, U14 and U15 use the eight road bus transceivers of model SN74HC245, for data
Asynchronous two-way communication between bus, simplifies circuit design.
As shown in figure 5, serial communication module, leads to for the control board debugging of channel controller and with host computer
News；The serial communication module includes a debugging circuit board serial ports and two host computer communication serial ports, and three serial ports are integrated into
Above a port.3 road serial ports UART signals are out changed into standard serial port signal from CPU by serial ports conversion chip U5 and U6
By the external three roads rs 232 serial interface signal of mono- DB9 interface of terminal J2, circuit board space has been saved.Serial ports conversion chip in the present embodiment
U5 and U6 uses the chip of model SP3232EEN.
As shown in Fig. 2, input/output module, for the various status indicator lamps in control passage inside, acoustic-optic alarm, connects
Receive various external switch signals, and outwards output system status information.
The input/output module includes the output of 15 tunnels and the input of 8 tunnels, and described outputs and inputs whole and central processing
Device CPU isolates, wherein, the output of 9 tunnels uses to be conventional, is respectively turned on indicator light 1, passage indicator light 2, passage indicator light, report
Alert device, buzzer etc., the instruction of general channel status, instruction of swiping the card, strengthens visual effect, according to the demand of different clients, connects
Different indicator lights；Also 2 tunnels input and 2 tunnels export and used for access control to gate inhibition, access controller are connect, for passage
Authorize to open the door and close the door, and the 2 tunnels output of gate inhibition exports for relay；In addition also reserved two group of 2 tunnel inputs the output of 2 tunnels and one group 2
Road inputs；The network port keeps for the network equipment to use, such as industrial personal computer；Serial communication port reservation is used to serial equipment,
Such as two-dimensional code scanning instrument, identity card reader etc..
As shown in fig. 6, the circuit for inputting explanation input/output module with 2 tunnels with the output of 4 tunnels connects, other input and output
Connection mode is similar or identical therewith.Wherein, the output of 2 tunnels is common output, and the output of 2 tunnels exports for relay.Central processing unit
Output signal pins P0_09, P2_02, P2_03 and P2_04 of CPU passes through exclusion RP28, optocoupler OP19, OP20, OP21,
OP22, exclusion RP27, RP34, then exported to MOSFET Q13, Q14, Q15, Q16 drivings, wherein, Q13 and Q14 outputs DSPSO
And the output of DSPSC, Q15 and Q16 drive relay LS1 and LS2 output R1NO and R2NO respectively again；Wherein, input signal
DSPO0 enters CPU after resistance R27, optocoupler OP23 isolation by signal pins P0_08, and input signal DSPO1 passes through resistance
CPU is entered by signal pins P0_07 after R28, optocoupler OP24 isolation.MOSFET pipes Q13, Q14, Q15, Q16 use model
The chip of IRLML0040TRPbF, optocoupler OP23 and OP24 use the chip of model EL3H7D.
Operation principle：
The master ＆ slave control circuit of the utility model is installed in same personnel channel, main channel controller and from passage control
Device processed is connected using 8P cables.
After startup, main channel controller on the one hand output infrared emission information, and sent to from passage and controlled by cable
Device, is exported by light-coupled isolation by the infrared emission information exported from channel controller, drives the infrared emission of infrared emission plate
Launch infrared detection signal in port；Meanwhile the infrared receiver port of main channel controller is effective, the transmitting of infrared emission port is received
Infrared detection signal；When infrared receiver port can receive infrared detection signal, illustrate no personnel by passage, when
When infrared receiver port cannot receive infrared detection signal, illustrate there are personnel to be detected by passage, infrared receiver port
Above- mentioned information send to main channel control central processor CPU, so as to judge the infrared receiver port of main channel controller
The infrared point information of collection, to judge personnel's current intelligence in pedestrian place channel position, and passage.
In addition, the information of the network communication module, CAN communication module and input/output module from channel controller all passes through
CAN communication cable on cable passes to main channel controller.
During normal mounting, multipair infrared receiver port and infrared is installed along the length direction of passage in whole personnel channel
Emission port, to obtain position of the personnel in passage in real time, and infrared receiver port and infrared emission port can be
One layer can also install multilayer by height.
Using the above-mentioned desirable embodiment according to the utility model as enlightenment, by above-mentioned description, relevant work
Personnel can carry out various changes and amendments in without departing from the scope of the utility model completely.This item utility model
Technical scope is not limited to the content on specification, it is necessary to determines its technical scope according to right.
Claims (6)
- A kind of 1. personnel channel's master ＆ slave control circuit, it is characterised in that：Including two channel controllers, set by toggle switch Channel controller for main director mode or has one to be set as master control from director mode, and in described two channel controllers Device pattern processed is main channel controller, another is set as that from director mode be each passage control from channel controller Device processed includesCentral processing unit, the information processing for channel control system；Master-slave communication module, for main channel controller and from the communication between the control board of channel controller, and data It is synchronous；Infrared point detection module, the flow of personnel situation for testing staff's channel interior；Serial communication module, communicates for the control board debugging of channel controller and with host computer；Network communication module, communicates for TCP/IP；CAN communication module, for connecting movement controller, to control the motor driving gate wing to act；Input/output module, for various status indicator lamps, acoustic-optic alarm, the various external switches of reception inside control passage Signal, and outwards output system status information.
- 2. personnel channel's master ＆ slave control circuit as claimed in claim 1, it is characterised in that：The master-slave communication module includes net Line, the main side port JX1 of described cable one end insertion main channel controller, other end insertion is from channel controller from end port JX2, the cable are used for transmission infrared emission information and CAN communication information；The infrared emission information of main channel controller passes through Cable is sent to from channel controller, is exported by the infrared emission information exported from channel controller by light-coupled isolation, driving Infrared emission plate launches infrared detection signal.
- 3. personnel channel's master ＆ slave control circuit as claimed in claim 2, it is characterised in that：The cable is 8P cables, described The signal that 8P cables are connected to main side port JX1 includes CAN communication signal end CAN0L and CAN0H, main channel controller power source letter Number end VDD5V and GNDD, infrared emission information signal end A0+, A1+ and A2+, wherein, CAN0L and CAN0H receive and dispatch core by CAN Piece is connected to the central processor CPU of main channel controller；The signal that the 8P cables are connected to from end port JX2 includes CAN communication signal end CAN0L and CAN0H, is controlled from passage Device power supply signal end VCC_IN and GND_IN, infrared emission information signal end A0-, A1- and A2-, wherein, CAN0L and CAN0H lead to Cross CAN transceiving chips and be connected to central processor CPU from channel controller；VDD5V, GNDD, A0+, A1+ and A2+ are reached from channel controller after cable at main channel controller signals end, and point It is not corresponding with from channel controller signal end VCC_IN, GND_IN, A0-, A1- and A2-, signal end A0-, A1- and A2- respectively according to It is secondary that infrared emission signal E00-, E01- and E02- are converted into after exclusion RP16, optical coupling isolation circuit OP1, OP2 and OP3；Main channel controller power source signal end VDD5V and GNDD with from channel controller power supply signal end VCC_IN and GND_IN it Between isolated using optical coupling isolation circuit OP1, OP2 and OP3.
- 4. personnel channel's master ＆ slave control circuit as claimed in claim 1, it is characterised in that：The infrared point detection module includes The infrared receiver port being arranged on channel controller and infrared emission port, and the infrared receiver end of the main channel controller Mouth is effectively, described effective from the infrared emission port of channel controller；The infrared point information that the infrared receiver port is used to gather infrared emission port is sent to the center of main channel controller Processor CPU, and analyzed and processed by CPU, judge flow of personnel situation；The infrared emission port is used to launch infrared inspection Survey signal.
- 5. personnel channel's master ＆ slave control circuit as claimed in claim 1, it is characterised in that：The serial communication module includes one A debugging circuit board serial ports and two host computer communication serial ports, three serial ports are integrated into above a port.
- 6. personnel channel's master ＆ slave control circuit as claimed in claim 1, it is characterised in that：The input/output module includes 15 Road exports and the input of 8 tunnels, and described output and input all is isolated with central processor CPU, wherein, the input of 2 tunnels and the output of 2 tunnels Used to gate inhibition, and the 2 tunnels output of gate inhibition exports for relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721357073.1U CN207367010U (en) | 2017-10-20 | 2017-10-20 | A kind of personnel channel's master ＆ slave control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721357073.1U CN207367010U (en) | 2017-10-20 | 2017-10-20 | A kind of personnel channel's master ＆ slave control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207367010U true CN207367010U (en) | 2018-05-15 |
Family
ID=62419714
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721357073.1U Active CN207367010U (en) | 2017-10-20 | 2017-10-20 | A kind of personnel channel's master ＆ slave control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207367010U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107632554A (en) * | 2017-10-20 | 2018-01-26 | 江苏汉武智能科技有限公司 | A kind of personnel channel's master ＆ slave control circuit |
| CN109993872A (en) * | 2019-04-16 | 2019-07-09 | 广东安快智能科技有限公司 | A kind of distributed control structure for access door |
-
2017
- 2017-10-20 CN CN201721357073.1U patent/CN207367010U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107632554A (en) * | 2017-10-20 | 2018-01-26 | 江苏汉武智能科技有限公司 | A kind of personnel channel's master ＆ slave control circuit |
| CN109993872A (en) * | 2019-04-16 | 2019-07-09 | 广东安快智能科技有限公司 | A kind of distributed control structure for access door |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207367010U (en) | A kind of personnel channel's master ＆ slave control circuit | |
| CN104818916B (en) | A kind of intelligent electric window group control system based on CAN and method | |
| CN102798834A (en) | Wiring judgement control machine for wiring simulation system for verification on power transformer | |
| CN104796356B (en) | Vehicle-mounted Ethernet switch and signal transmitting and receiving and train weight linked method used for rail vehicle | |
| CN201156204Y (en) | Bus control system for three-dimensional garage | |
| CN107015507A (en) | A kind of central controller integrates extension system | |
| CN107632554A (en) | A kind of personnel channel's master ＆ slave control circuit | |
| CN108055512A (en) | Mating long distance tunnel continuous conveyor system monitoring and control device after a kind of shield | |
| CN105788297A (en) | Intelligent traffic signal lamp system | |
| CN103049357B (en) | Electronic circuit product chip-scale maintenance intelligent detection card | |
| CN106102266A (en) | underground garage lighting energy-saving control system | |
| CN107146317A (en) | A kind of gate infrared detection system | |
| CN206790481U (en) | Embedded electric power communication processor based on electric power Internet of Things | |
| CN104299429B (en) | A kind of semaphore controlled based on spi bus | |
| CN101739009A (en) | Hydraulic support electro-hydraulic controller and control method thereof | |
| CN104332129B (en) | Concatenation unit data back method, concatenation unit and tiled display | |
| CN202600127U (en) | Wiring judgment controlling machine for power transformer test wiring simulation system | |
| CN108961516A (en) | A kind of intelligence based on STM32 and RFID radio-frequency technique is swiped the card control system and method | |
| CN104597867A (en) | Distributed bus electric control system | |
| CN205149632U (en) | Tractor work light controller and control system ; tractor | |
| CN203720904U (en) | Intelligent controllable-type safety barrier block system for school vehicles | |
| CN206014133U (en) | Elevator check system | |
| CN105182838A (en) | Intelligent terminal processing circuit suitable for building intelligence | |
| CN203134134U (en) | Road traffic signal countdown display based on electric power carrier communication | |
| CN203012404U (en) | Mining display control cabinet |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |