CN220400055U - Repeater based on two bus control - Google Patents
Repeater based on two bus control Download PDFInfo
- Publication number
- CN220400055U CN220400055U CN202321998738.2U CN202321998738U CN220400055U CN 220400055 U CN220400055 U CN 220400055U CN 202321998738 U CN202321998738 U CN 202321998738U CN 220400055 U CN220400055 U CN 220400055U
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- communication circuit
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- 238000007599 discharging Methods 0.000 claims description 4
- 238000001514 detection method Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Abstract
The utility model provides a repeater based on two-bus control, which comprises a case, wherein a power supply module, a main control module and a standby power module are arranged in the case, and the main control module is connected with the power supply module and the standby power module; the master control module comprises a power switch, an MCU circuit, a slave station communication circuit, a master station communication circuit, a standby power module charge-discharge circuit and a serial port LOG circuit, wherein the MCU circuit is connected with the slave station communication circuit, the master station communication circuit and the serial port LOG circuit; when the devices connected on the bus are too many or are far away, power and communication are provided for the externally connected combustible gas detector and the linkage module through the repeater. And the states of the combustible gas detector and the linkage module are inquired so as to realize that a single host can be connected with more combustible gas detectors and linkage modules. Meanwhile, the repeater is designed with a standby power supply for supplying power, and when the main power supply fails, the power supply can be continuously supplied to the detector and the linkage module.
Description
Technical Field
The utility model relates to the field of flammable gas detection, in particular to a repeater based on two-bus control.
Background
The flammable gas detection system on the market at present usually adopts 1 RS485 bus or CAN bus to connect a plurality of devices, and when the transmission distance is far, the communication rate of the system is relatively low, thereby leading to the increase of response time. If the communication rate is increased, the stability of the system is affected, and the working state is abnormal. It is therefore necessary to develop a repeater based on two-bus control.
Disclosure of Invention
The utility model aims to solve the problems and provide a repeater based on two-bus control, which comprises a case, wherein a power module, a main control module and a standby module are arranged in the case, and when the devices connected on a bus are too many or far away, the repeater is used for providing power and communication for a flammable gas detector and a linkage module which are externally connected. And inquiring the states of the combustible gas detector and the linkage module, and sending the inquired information to the combustible gas alarm controller after summarizing, so that a single host can be connected with more combustible gas detectors and linkage modules. Meanwhile, the repeater is designed with a standby power supply for supplying power, and when the main power supply fails, the power supply can be continuously supplied to the detector and the linkage module.
In order to achieve the above purpose, the present utility model adopts the following technical scheme.
The repeater based on two-bus control comprises a case, wherein a power supply module, a main control module and a standby power module are arranged in the case, and the main control module is connected with the power supply module and the standby power module; the master control module comprises a power switch, an MCU circuit, a slave station communication circuit, a master station communication circuit, a standby power module charging and discharging circuit and a serial port LOG circuit, wherein the MCU circuit is connected with the slave station communication circuit, the master station communication circuit and the serial port LOG circuit, the power switch is connected with the power module, and the standby power module charging and discharging circuit is connected with the standby power module.
Further, the power supply module is a switching power supply.
Further, the secondary station communication circuit is connected with a flammable gas controller.
Further, the master station communication circuit is connected with the flammable gas controller and a linkage module.
Further, the serial LOG circuit is connected with a computer.
Further, the adapter plate is arranged in the case through screws.
Further, the power module, the main control module and the standby power module are arranged on the adapter plate.
The repeater based on the two-bus control has the positive effects that:
according to the utility model, the repeater provides power and communication for the externally connected combustible gas detector and the linkage module, the states of the combustible gas detector and the linkage module are inquired, the inquired information is summarized and then sent to the combustible gas alarm controller, the response time of the system can be effectively improved, and a single host can be connected with more combustible gas detectors and linkage modules. Meanwhile, the repeater is designed with a standby power supply for supplying power, and when the main power supply fails, the power supply can be continuously supplied to the detector and the linkage module.
Drawings
Fig. 1 is a schematic diagram provided by an embodiment of the present utility model.
The reference numerals in the figures are respectively:
1. a chassis; 2. a power module; 3. a main control module; 4. and (5) preparing an electric module.
Detailed Description
A specific embodiment of a repeater based on two-bus control according to the present utility model is given below with reference to the accompanying drawings, but it should be noted that: the embodiments are not intended to limit the practice of the utility model. All similar structures and similar variations using the present utility model should be included in the scope of the present utility model. The following description of the embodiments refers to the accompanying drawings, which illustrate specific embodiments in which the utility model may be practiced. The directional terms mentioned in the embodiments, such as "up", "down", "front", "back", "left", "right", "top", "bottom", etc., refer only to the directions of the attached drawings. Accordingly, directional terminology is used to describe and understand the utility model and is not limiting of the utility model.
See fig. 1. The repeater based on two-bus control comprises a case 1, wherein a power supply module 2, a main control module 3 and a standby power module 4 are arranged in the case 1, and the main control module 3 is connected with the power supply module 2 and the standby power module 4; the main control module 3 comprises a power switch, an MCU circuit, a slave station communication circuit, a master station communication circuit, a standby power module 4 charge-discharge circuit and a serial port LOG circuit, wherein the MCU circuit is connected with the slave station communication circuit, the master station communication circuit and the serial port LOG circuit, the power switch is connected with the power module 2, and the standby power module 4 charge-discharge circuit is connected with the standby power module 4.
The power module 2 is a switching power supply, the secondary station communication circuit is connected with a flammable gas controller, the primary station communication circuit is connected with the flammable gas controller and a linkage module, the serial port LOG circuit is connected with a computer and further comprises an adapter plate, the adapter plate is installed in the case 1 through screws, and the power module 2, the main control module 3 and the standby power module 4 are installed on the adapter plate.
Case 1: the power module 2, the main control module 3 and the standby power module 4 are fixed together through the adapter plate, and then are mounted on the chassis 1 module through 6 screws.
Power module 2: the switching power supply is mainly adopted to convert AC220V voltage into DC27V direct current voltage, and power is provided for charging the main control module 3 and the standby power module 4 and other external equipment;
and the main control module 3: the main control module 3 is provided with a power switch, an MCU circuit, a secondary station communication circuit, a primary station communication circuit, a standby power module 4 charge-discharge circuit and a serial LOG circuit. The power switch is mainly used for switching and switching on an AC220V power supply; the MCU circuit is connected with the master station, the slave station and the serial LOG circuit through serial ports; the secondary station circuit is mainly connected with an external flammable gas controller and receives data information sent by the flammable gas controller; the main station circuit is mainly connected with an external combustible gas detector and the linkage module, inquires the state of the detector or the linkage module and sends the state to the combustible gas alarm controller through a bus; the serial LOG circuit is used for acquiring the working state of the current equipment through a computer.
Power backup module 4: the power supply device is mainly used for continuously providing power for the connected external combustible gas detector or the linked module when the main power fails;
the specific working procedure is as follows:
the repeater based on two bus control externally inputs AC220V alternating current power, provides power for the power module 2 after passing through the switch on the main control module 3, and the power module 2 converts AC220V into DC27V, and output voltage is connected to the main control board to supply power for the standby charging circuit, the direct current output circuit and other units of the main control module 3. MCU on the main control module 3 passes through serial ports connection bus master station chip, the master station circuit passes through two line interface connection flammable gas detector and linkage module, send the inquiry information that MCU sent to the slave station equipment of connection after passing through master station chip modulation, after analyzing data through the slave station chip on the equipment of connection, send the status information of equipment to the master station chip, master station chip analysis data send MCU to, the MCU gathers after extracting data, wait to connect the flammable gas alarm controller of slave station interface and carry out data inquiry, relay controller is according to the format of agreeing for, send data to flammable gas alarm controller host computer. The main control module 3 is reserved with a direct current power supply output, and a self-recovery safety is added to prevent the normal operation of other circuits from being influenced by overload. The main control module 3 is designed with an RS232 communication interface, and can output the working state of the repeater to equipment to be detected through a serial port.
Claims (7)
1. The repeater based on the two-bus control comprises a case, and is characterized in that a power module, a main control module and a standby power module are arranged in the case, and the main control module is connected with the power module and the standby power module; the master control module comprises a power switch, an MCU circuit, a slave station communication circuit, a master station communication circuit, a standby power module charging and discharging circuit and a serial port LOG circuit, wherein the MCU circuit is connected with the slave station communication circuit, the master station communication circuit and the serial port LOG circuit, the power switch is connected with the power module, and the standby power module charging and discharging circuit is connected with the standby power module.
2. The two-bus control-based repeater of claim 1, wherein the power module is a switching power supply.
3. The two-bus control-based repeater as in claim 1, wherein the secondary station communication circuit is coupled to a flammable gas controller.
4. A two-bus control based repeater as claimed in claim 3, wherein the primary station communication circuit is connected to the flammable gas controller and a link module.
5. The two-bus control-based repeater as in claim 1, wherein the serial LOG circuit is connected to a computer.
6. The two-bus control-based repeater according to claim 1, further comprising an adapter plate mounted in the chassis by screws.
7. The two-bus control-based repeater according to claim 6, wherein the power module, the main control module and the standby power module are mounted on the patch panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321998738.2U CN220400055U (en) | 2023-07-27 | 2023-07-27 | Repeater based on two bus control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321998738.2U CN220400055U (en) | 2023-07-27 | 2023-07-27 | Repeater based on two bus control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220400055U true CN220400055U (en) | 2024-01-26 |
Family
ID=89611661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321998738.2U Active CN220400055U (en) | 2023-07-27 | 2023-07-27 | Repeater based on two bus control |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220400055U (en) |
-
2023
- 2023-07-27 CN CN202321998738.2U patent/CN220400055U/en active Active
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