CN210852481U - Electronic five-wire system turnout control device - Google Patents
Electronic five-wire system turnout control device Download PDFInfo
- Publication number
- CN210852481U CN210852481U CN201921639591.1U CN201921639591U CN210852481U CN 210852481 U CN210852481 U CN 210852481U CN 201921639591 U CN201921639591 U CN 201921639591U CN 210852481 U CN210852481 U CN 210852481U
- Authority
- CN
- China
- Prior art keywords
- emitting diode
- light emitting
- optical coupling
- circuit
- anode
- 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
Images
Landscapes
- Train Traffic Observation, Control, And Security (AREA)
Abstract
The utility model relates to an electronic type five-wire system switch controlling means, it includes a drive circuit, drive circuit includes: the optical coupler chip U1 and the optical coupler chip U2; the optical coupling chip U1 comprises a first optical coupling circuit and a second optical coupling circuit; the first optical coupler circuit comprises a first light emitting diode and a first photoelectric detector, wherein the anode of the first light emitting diode is connected with a power supply, and the cathode of the light emitting diode is connected with the first processor CPUA through a resistor R46; two ends of the first photoelectric detector are respectively connected with a power supply and a positive input terminal JDC _ Z of the DC relay; the second optical coupling circuit comprises a second light-emitting diode and a second photodetector, the anode of the second light-emitting diode is connected with the second processor CPUB through a resistor R47, and the cathode of the light-emitting diode is grounded; and two ends of the second photoelectric detector are respectively connected with the negative input end JDC _ F of the DC relay and the ground.
Description
Technical Field
The utility model relates to a switch controlling means belongs to rail transit technical field, specifically is to relate to an electronic type five-wire system switch controlling means.
Background
The railway train can run efficiently and safely, and is realized by the comprehensive application of technologies, manual control and mechanical means such as computers, networks and the like through the collection of various factors including equipment on the train, beside the rail, in the station and in a control center. In order to adapt to the high-speed running of trains, a computer interlocking system is generally adopted for indoor control of stations, but a safety relay circuit is still adopted when a point switch and other outdoor equipment are controlled.
The switch control module is used as an electronic control module, can be combined with microcomputer interlocking and relay electricity of various systems in a centralized manner, has self-diagnosis and alarm functions, realizes miniaturization and modularization, and provides a method for solving the problems.
The current design of the control circuit of the five-wire turnout AC point switch adopts the traditional gravity safety relay. The large adoption of the relays leads to the large increase of the area of a station mechanical room on one hand; on the other hand, the frequency of faults is high, and particularly, the relay circuit cannot finish self fault and state diagnosis and cannot realize preventive maintenance. Maintenance and repair of the relay also adds to the workload for the user.
SUMMERY OF THE UTILITY MODEL
The utility model mainly solves the technical problems in the prior art and provides an electronic five-wire turnout control device.
The above technical problem of the present invention can be solved by the following technical solutions:
an electronic five-wire switch control device, comprising a driving circuit, the driving circuit comprising: the optical coupler chip U1 and the optical coupler chip U2;
the optical coupling chip U1 comprises a first optical coupling circuit and a second optical coupling circuit; the first optical coupler circuit comprises a first light emitting diode and a first photoelectric detector, wherein the anode of the first light emitting diode is connected with a power supply, and the cathode of the light emitting diode is connected with the first processor CPUA through a resistor R46; two ends of the first photoelectric detector are respectively connected with a power supply and a positive input terminal JDC _ Z of the DC relay; the second optical coupling circuit comprises a second light-emitting diode and a second photodetector, the anode of the second light-emitting diode is connected with the second processor CPUB through a resistor R47, and the cathode of the light-emitting diode is grounded; two ends of the second photoelectric detector are respectively connected with the negative input end JDC _ F of the DC relay and the ground;
the optical coupling chip U2 comprises a third optical coupling circuit and a fourth optical coupling circuit; the third optocoupler circuit comprises a third light emitting diode and a third photodetector, the anode of the third light emitting diode is connected with a power supply, and the cathode of the light emitting triode is connected with the first processor CPUA through a resistor R51; two ends of the third photoelectric detector are respectively connected with a power supply and an FC relay input positive end JFC _ Z; the fourth optical coupling circuit comprises a fourth light emitting diode and a fourth photodetector, the anode of the fourth light emitting diode is connected with the second processor CPUB through a resistor R53, and the cathode of the light emitting diode is grounded; the two ends of the fourth photoelectric detector are respectively connected with the FC relay input negative end JDC _ F and the ground;
preferably, the electronic five-wire switch control device further includes a starting circuit, and the starting circuit includes:
the optical coupling chip U9 comprises a fifth optical coupling circuit and a sixth optical coupling circuit; the fifth optocoupler circuit comprises a fifth light emitting diode and a fifth photodetector, the anode of the fifth light emitting diode is connected with the power supply, and the cathode of the fifth light emitting triode is connected with the first processor CPUA through a resistor R42; two ends of the fifth photoelectric detector are respectively connected with a power supply and the positive input end of the driving chip U10; the sixth optical coupling circuit comprises a sixth light emitting diode and a second photoelectric detector, the anode of the sixth light emitting diode is connected with the second processor CPUB through a resistor R43, and the cathode of the sixth light emitting diode is grounded; two ends of the sixth photoelectric detector are respectively connected with the negative input end of the driving chip U10 and the ground;
a non-polar capacitor C24, the anode of a polar capacitor C23 and an inductor R130 are connected in parallel between the output end and the ground end of the driving chip U10; the ground terminal of the driving chip U10 is grounded through a capacitor C30.
An electronic five-wire switch control device, comprising a starting circuit, the starting circuit comprising:
the optical coupling chip U9 comprises a fifth optical coupling circuit and a sixth optical coupling circuit; the fifth optocoupler circuit comprises a fifth light emitting diode and a fifth photodetector, the anode of the fifth light emitting diode is connected with the power supply, and the cathode of the fifth light emitting triode is connected with the first processor CPUA through a resistor R42; two ends of the fifth photoelectric detector are respectively connected with a power supply and the positive input end of the driving chip U10; the sixth optical coupling circuit comprises a sixth light emitting diode and a second photoelectric detector, the anode of the sixth light emitting diode is connected with the second processor CPUB through a resistor R43, and the cathode of the sixth light emitting diode is grounded; two ends of the sixth photoelectric detector are respectively connected with the negative input end of the driving chip U10 and the ground;
a non-polar capacitor C24, the anode of a polar capacitor C23 and an inductor R130 are connected in parallel between the output end and the ground end of the driving chip U10; the ground terminal of the driving chip U10 is grounded through a capacitor C30.
Therefore, the utility model has the advantages of as follows:
(1) the action circuits are controlled in series and in a grading way, the safety relays are controlled to take effect at two stages at the same time, a double-CPU mode is adopted, each CPU respectively receives control commands sent by the host computer, the consistency of the commands is compared, the control commands are output when the commands are consistent, and the commands are closed when the commands are inconsistent;
(2) the relay driving voltage is switched on and off by a master control relay. When no output is available, the relay drive circuit is bypassed, so that the possibility of relay pull-in output caused by misoperation and drive circuit breakdown is reduced;
(3) the switch machine is controlled by two relays in series connection and double-break operation respectively, so that the possibility of output of the relays due to adhesion is reduced.
(4) Collecting the state of a point switch, and sending information to a linkage host through a double CAN-BUS BUS;
drawings
FIG. 1 is a schematic diagram of a CAN communication circuit of the present invention;
FIG. 2 is a schematic diagram of a safety output circuit of the present invention;
FIG. 3 is a schematic circuit diagram of the safety driving module of the present invention;
fig. 4 is a circuit schematic diagram of the total start-up circuit module of the present invention;
fig. 5 is a schematic diagram showing the principle of the circuit of the present invention.
Fig. 6 is a schematic diagram of the voltage detection and current/open-phase detection circuit of the present invention.
Fig. 7 is a schematic diagram of a prior art five-wire switch ac switch machine control circuit.
Detailed Description
The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.
Example (b):
fig. 7 is a schematic diagram of a prior art five-wire switch ac switch machine control circuit. The control circuit mainly comprises a starting relay, two starting relays, an open-phase protection relay, a time relay and the like.
In a computer interlocking system, a turnout control circuit is a key ring for controlling turnout switching, and not only is the turnout controlled to turn to the correct position according to an interlocking command, but also the current position of the turnout is correctly identified and indicated.
The turnout control module system mainly realizes the conversion of turnouts according to instructions, correctly identifies the positions of the turnouts and provides representation information. The turnout control module is used as an electronic control module, and also has the functions of self-diagnosis and alarm, so that miniaturization and modularization are realized.
In the embodiment, a core safety circuit is built by using a small safety relay which accords with the European standard, an auxiliary circuit is completed by using electronic components, and a module circuit with higher integration degree is designed; the core safety circuit mainly refers to the principle of the current circuit to ensure the stability of the circuit.
The electronic five-wire system turnout control device of the embodiment is characterized by comprising:
the safety driving module adopts a double-CPU mode, each CPU respectively receives the control command sent by the host, compares the consistency of the commands, outputs the control command when the commands are consistent, and closes the command when the commands are inconsistent;
the main starting circuit module is used for controlling the on and off of the relay driving voltage, wherein the relay driving circuit is bypassed when no output is available;
the indicating circuit module is used for controlling the fixed operation and the reverse operation of the point switch by connecting two relays in series and double-breaking;
and the signal acquisition module is used for acquiring the state of the point switch and transmitting the information to the interlocking host through the double CAN-BUS BUS.
The modules are described in detail below with reference to the accompanying drawings.
Fig. 1 is a schematic diagram of a CAN communication circuit according to this embodiment. And the turnout device executes the turnout unlocking, turnout action, turnout state query and other commands sent by the interlocking host through the CAN _ BUS. For each control command, the switch driving plate will give a response immediately after receiving the command. In order to improve the reliability and stability of communication, two paths of CAN _ BUS communication buses are adopted for parallel communication, and a surge protection circuit is adopted on an output port.
Fig. 2 is a schematic diagram of the safety output circuit of the present embodiment.
In modular design, electronic devices primarily consider "fail-safe" logic. The main loop control part is one of the module cores, the damage of the control part can cause the malfunction of the switch machine, the 'failure-safety' design is needed, and when any element fails, the control module can not influence the switch machine to provide the action power supply.
The switch board control main loop adopts two-stage control to improve the safety of the module. Two safety relay double-break series connection outputs adopt to start step by step in software drive, guarantee when the output short circuit, even take place relay node adhesion, be so that two relay nodes adhesion simultaneously not also, improve the reliability of circuit like this. And X1X 2X 4X 5X 3 is an external interface connecting line of the turnout plate.
Fig. 3 is a schematic circuit diagram of the safety driving module of the present embodiment. In order to improve the safety of the circuit, the output driving signals are from two CPUs, each time the command is executed, the two CPUs respectively output 2 driving signals, and the 2 driving signals are combined by high and low levels to form a logic coding output, so as to ensure that the system does not output errors, thereby improving the safety and reliability of the output driving.
In this embodiment, the safety driving module includes: the optical coupler chip U1 and the optical coupler chip U2; the optical coupling chip U1 comprises a first optical coupling circuit and a second optical coupling circuit; the first optical coupler circuit comprises a first light emitting diode and a first photoelectric detector, wherein the anode of the first light emitting diode is connected with a power supply, and the cathode of the light emitting diode is connected with the first processor CPUA through a resistor R46; two ends of the first photoelectric detector are respectively connected with a power supply and JDC _ Z; the second optical coupling circuit comprises a second light-emitting diode and a second photodetector, the anode of the second light-emitting diode is connected with the second processor CPUB through a resistor R47, and the cathode of the light-emitting diode is grounded; two ends of the second photoelectric detector are respectively connected with JDC _ F and grounded; the optical coupling chip U2 comprises a third optical coupling circuit and a fourth optical coupling circuit; the third optocoupler circuit comprises a third light emitting diode and a third photodetector, the anode of the third light emitting diode is connected with a power supply, and the cathode of the light emitting triode is connected with the first processor CPUA through a resistor R51; two ends of the third photoelectric detector are respectively connected with a power supply and JFC _ Z; the fourth optical coupling circuit comprises a fourth light emitting diode and a fourth photodetector, the anode of the fourth light emitting diode is connected with the second processor CPUB through a resistor R53, and the cathode of the light emitting diode is grounded; two ends of the fourth photoelectric detector are respectively connected with JDC _ F and grounded;
fig. 4 is a schematic circuit diagram of the overall start-up circuit module of the present embodiment. All relay action driving signals are controlled by a master starting relay, and when the master starting relay is not sucked up, any command cannot cause the action of the relay. When the action command is not received, the drive signals of all the safety relays are disconnected by the total starting relay, on one hand, the relay action caused by the interference signals is avoided, on the other hand, the drive circuit is completely disconnected, the possibility that the drive circuit is damaged is avoided, and the safety and the reliability of the drive circuit are greatly improved.
Fig. 5 is a schematic diagram showing a circuit of the present embodiment. The switch machine state representation circuit adopts a relay combination with polarity, and the anti-interference capability and the anti-surge capability of the relay coil are greatly improved relative to the chip. The two relays are logically combined, so that the reliability and the safety of the input acquisition circuit are greatly improved. When the upper relay JD is sucked up and the lower relay JE falls down, CPUA _ IN13 and CPUB _ IN13 are at low level, and CPUA _ IN14 and CPUB _ IN14 are at high level;
when the relay JD falls and the relay JE is attracted, CPUA _ IN13 and CPUB _ IN13 are at high level, and CPUA _ IN14 and CPUB _ IN14 are at low level;
when the relays JD and JE suck up and drop down at the same time, CPUA _ IN13 and CPUB _ IN13, CPUA _ IN14 and CPUB _ IN14 are all at high level, so that the occurrence of the condition of low level occurring at the same time is avoided by mutual control of relay nodes.
Fig. 6 is a schematic diagram of the voltage detection and current/open-phase detection circuit of the present embodiment. The alternating-current control power supply of the point switch is isolated and detected by utilizing the integrated circuit chip, the voltage transformer and the current transformer, and voltage open phase, voltage phase sequence, current effective value, line voltage effective value, active power and the like can be detected in real time.
In this embodiment, the main loop control part is one of the cores of the module, and the damage of the control part may cause the malfunction of the switch machine. A fail-safe design must be employed, and the control module must not provide operating power to the switch machine when any element fails.
The control module controls the main loop to adopt two-stage control so as to improve the safety of the module. Due to the adoption of the two-stage control elements, the fault that the control module wrongly transmits power to the controlled object due to the fact that the two-stage control elements have the same fault (such as breakdown) caused by one external factor (such as instantaneous high voltage) is avoided. The control module works in parallel by 2 CPUs (central processing units), each CPU runs programs independently, and a control mode of 2-out-of-2 is adopted.
In the embodiment, the main operation circuit is controlled in series and in a grading way, and two stages of the safety relay are controlled to take effect at the same time to serve as the condition for the effective output of the module. The action of the safety relay is controlled by 2 CPUs respectively, and the two CPUs effectively output the condition of the relay suction at the same time. The relay driving voltage is switched on and off by a master control relay. When no output is available, the relay drive circuit is bypassed, so that the possibility of relay pull-in output caused by misoperation and drive circuit breakdown is reduced; the switch machine is controlled by two relays in series connection and double-break operation respectively, so that the possibility of output of the relays due to adhesion is reduced. Collecting the state of a point switch, and sending information to an interlocking host through a double CAN-BUS BUS; adopting a double-CPU mode, wherein each CPU respectively receives a control command sent by a host, compares the consistency of the commands, outputs the control command when the commands are consistent, and closes the command when the commands are inconsistent;
after the scheme is adopted, the embodiment can realize the following functions:
1. receiving a switch switching command sent by interlocking: and receiving a command for controlling the forward rotation or the reverse rotation of the switch machine sent by the interlocking through a control output interface accessed to the computer interlocking. The mode of receiving the command is to access the interlocking network and receive a command information packet transmitted by the computer interlocking network.
2. Controlling the switch to switch according to the interlocked switching command: and after receiving the interlocking conversion command, the turnout control module controls the point switch to forward or reverse according to the interlocking command. Absolute limiting conditions: in the absence of receiving the interlocked switching command, the switch machine must not be supplied with switching power in any case.
3. Detecting the position of a switch in real time: and detecting the position representation of the switch machine in real time according to the current representation circuit of the switch machine.
4. Real-time continuous transmission of switch machine position information to interlocks: and the switch control module continuously transmits the detected position information of the point switch to the interlocking system in real time. The transmission mode is to access the interlocking network, and the position transmitted to the computer interlocking network represents the information packet. Absolute limiting conditions: in the absence of detection of a switch position indication, no switch position indication information must be provided to the interlock in any case.
5. The self-detection function is that the turnout control module has the self-detection function for convenient maintenance and can find the abnormal working state of the module and the related interface. And can provide self-test information to the interlock system.
6. And (4) fault prompt alarm, namely when the turnout control module has a fault, an alarm should be given on the module or the interlocking system to prompt the attention of a user and a maintenance worker.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (3)
1. An electronic five-wire switch control device, comprising a driving circuit, wherein the driving circuit comprises: the optical coupler chip U1 and the optical coupler chip U2;
the optical coupling chip U1 comprises a first optical coupling circuit and a second optical coupling circuit; the first optical coupler circuit comprises a first light emitting diode and a first photoelectric detector, wherein the anode of the first light emitting diode is connected with a power supply, and the cathode of the light emitting diode is connected with the first processor CPUA through a resistor R46; two ends of the first photoelectric detector are respectively connected with a power supply and a positive input terminal JDC _ Z of the DC relay; the second optical coupling circuit comprises a second light-emitting diode and a second photodetector, the anode of the second light-emitting diode is connected with the second processor CPUB through a resistor R47, and the cathode of the light-emitting diode is grounded; two ends of the second photoelectric detector are respectively connected with the negative input end JDC _ F of the DC relay and the ground;
the optical coupling chip U2 comprises a third optical coupling circuit and a fourth optical coupling circuit; the third optical coupling circuit comprises a third light emitting diode and a third photodetector, the anode of the third light emitting diode is connected with the power supply, and the cathode of the third light emitting diode is connected with the first processor CPUA through a resistor R51; two ends of the third photoelectric detector are respectively connected with a power supply and an FC relay input positive end JFC _ Z; the fourth optical coupling circuit comprises a fourth light emitting diode and a fourth photodetector, the anode of the fourth light emitting diode is connected with the second processor CPUB through a resistor R53, and the cathode of the light emitting diode is grounded; and the two ends of the fourth photoelectric detector are respectively connected with the FC relay input negative end JDC _ F and the ground.
2. The electronic five-wire switch control device as claimed in claim 1, further comprising a start circuit, said start circuit comprising:
the optical coupling chip U9 comprises a fifth optical coupling circuit and a sixth optical coupling circuit; the fifth optical coupling circuit comprises a fifth light emitting diode and a fifth photodetector, the anode of the fifth light emitting diode is connected with the power supply, and the cathode of the fifth light emitting diode is connected with the first processor CPUA through a resistor R42; two ends of the fifth photoelectric detector are respectively connected with a power supply and the positive input end of the driving chip U10; the sixth optical coupling circuit comprises a sixth light emitting diode and a sixth photodetector, the anode of the sixth light emitting diode is connected with the second processor CPUB through a resistor R43, and the cathode of the sixth light emitting diode is grounded; two ends of the sixth photoelectric detector are respectively connected with the negative input end of the driving chip U10 and the ground;
a non-polar capacitor C24, the anode of a polar capacitor C23 and an inductor R130 are connected in parallel between the output end and the ground end of the driving chip U10; the ground terminal of the driving chip U10 is grounded through a capacitor C30.
3. An electronic five-wire switch control device, comprising a starting circuit, wherein the starting circuit comprises:
the optical coupling chip U9 comprises a fifth optical coupling circuit and a sixth optical coupling circuit; the fifth optical coupling circuit comprises a fifth light emitting diode and a fifth photodetector, the anode of the fifth light emitting diode is connected with the power supply, and the cathode of the fifth light emitting diode is connected with the first processor CPUA through a resistor R42; two ends of the fifth photoelectric detector are respectively connected with a power supply and the positive input end of the driving chip U10; the sixth optical coupling circuit comprises a sixth light emitting diode and a sixth photodetector, the anode of the sixth light emitting diode is connected with the second processor CPUB through a resistor R43, and the cathode of the sixth light emitting diode is grounded; two ends of the sixth photoelectric detector are respectively connected with the negative input end of the driving chip U10 and the ground;
a non-polar capacitor C24, the anode of a polar capacitor C23 and an inductor R130 are connected in parallel between the output end and the ground end of the driving chip U10; the ground terminal of the driving chip U10 is grounded through a capacitor C30.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921639591.1U CN210852481U (en) | 2019-09-29 | 2019-09-29 | Electronic five-wire system turnout control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921639591.1U CN210852481U (en) | 2019-09-29 | 2019-09-29 | Electronic five-wire system turnout control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210852481U true CN210852481U (en) | 2020-06-26 |
Family
ID=71286496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921639591.1U Active CN210852481U (en) | 2019-09-29 | 2019-09-29 | Electronic five-wire system turnout control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210852481U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113562017A (en) * | 2021-08-19 | 2021-10-29 | 中铁二十四局集团上海电务电化有限公司 | Railway switch interlocking control system |
-
2019
- 2019-09-29 CN CN201921639591.1U patent/CN210852481U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113562017A (en) * | 2021-08-19 | 2021-10-29 | 中铁二十四局集团上海电务电化有限公司 | Railway switch interlocking control system |
| CN113562017B (en) * | 2021-08-19 | 2023-02-28 | 中铁二十四局集团上海电务电化有限公司 | Railway turnout interlocking control system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109278802B (en) | Alternating current turnout device, system and control method thereof | |
| CN109278801B (en) | Turnout indicating device | |
| CN107933613B (en) | Non-national standard turnout driving system based on two-by-two architecture | |
| CN105680566B (en) | The rebooting device and method for restarting of fault wave recording device based on dispatch data net | |
| CN112693495B (en) | Node-free distributed turnout safety driving control system | |
| CN111030116B (en) | Intelligent power supply and distribution system of equipment transport vehicle | |
| CN107386868A (en) | A kind of modular control apparatus for platform door system | |
| CN111186463A (en) | Board-level redundant full-electronic computer interlocking system | |
| CN209739079U (en) | Logic control unit for train | |
| CN210852481U (en) | Electronic five-wire system turnout control device | |
| CN110095977A (en) | Redundance unit, principal and subordinate's module determination method, topological system and Communication Decision method | |
| CN112373518A (en) | Electronic five-wire system turnout control device | |
| CN106487627B (en) | RIOM and train with RIOM | |
| CN106476626A (en) | Railcar auxiliary power supply extends system | |
| CN110687475A (en) | Remote fault diagnosis circuit, detection method and multi-split air conditioning unit | |
| CN111736563B (en) | Control device, distributed control system and control method for annunciator | |
| CN211720255U (en) | Signal machine self-fusing circuit based on fault safety | |
| CN201774313U (en) | Process layer combining unit | |
| CN101714776B (en) | 10KV station electric control system of convertor station adopting selecting 2 from 3 logic | |
| CN115158405A (en) | Scattered integrated circuit board of full electronic interlocking system QM-SIO | |
| CN109541933A (en) | Diesel locomotive status monitoring and emergency flight control system and method | |
| CN110597050B (en) | Intelligent safety input module | |
| CN115107827A (en) | Novel QM-SW turnout board card | |
| CN110808567A (en) | Signal machine electronic execution circuit based on fault safety | |
| CN116767305B (en) | Full-electronic coding and signal transmission device and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220105 Address after: 101300 Room 203, building 5, 13 Fuqian 1st Street, Tianzhu District, Shunyi District, Beijing Patentee after: Beijing Urban Construction Intelligent Control Technology Co.,Ltd. Address before: 100037 No. 5 Fuchengmen North Street, Xicheng District, Beijing Patentee before: BEIJING URBAN CONSTRUCTION DESIGN & DEVELOPMENT GROUP Co.,Ltd. |
|
| TR01 | Transfer of patent right |