CN220962207U - Data monitoring system with automatic receiving and transmitting function - Google Patents
Data monitoring system with automatic receiving and transmitting function Download PDFInfo
- Publication number
- CN220962207U CN220962207U CN202322955737.6U CN202322955737U CN220962207U CN 220962207 U CN220962207 U CN 220962207U CN 202322955737 U CN202322955737 U CN 202322955737U CN 220962207 U CN220962207 U CN 220962207U
- Authority
- CN
- China
- Prior art keywords
- chip
- resistor
- pins
- data
- module
- 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
- 238000012544 monitoring process Methods 0.000 title claims abstract description 19
- 238000012545 processing Methods 0.000 claims abstract description 36
- 238000004891 communication Methods 0.000 claims abstract description 30
- 230000001629 suppression Effects 0.000 claims description 34
- 230000001052 transient effect Effects 0.000 claims description 34
- 238000011084 recovery Methods 0.000 claims description 22
- 238000010586 diagram Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Landscapes
- Emergency Protection Circuit Devices (AREA)
Abstract
The utility model relates to the technical field of data monitoring, in particular to a data monitoring system with an automatic receiving and transmitting function, which comprises an acquisition module, a processing module and a communication module, wherein the acquisition module is used for monitoring various data in a machine room, the processing module is used for receiving the data transmitted by the acquisition module, a processing chip is arranged in the processing module, the communication module is used for receiving and transmitting the data, the communication module comprises a connecting circuit, a communication chip and an output circuit, the communication chip comprises an RS485 chip, the connecting circuit is used for controlling the receiving and transmitting of the data, and the output circuit is used for outputting the data. According to the utility model, the processing chip is connected with the RS485 chip only by using RXD and TXD pins, so that the pin resources of the processing chip are saved, and the practicability is higher.
Description
Technical Field
The utility model relates to the technical field of data monitoring, in particular to a data monitoring system with an automatic receiving and transmitting function.
Background
In a data machine room, various data are required to be monitored generally, the data are transmitted, a worker can know the situation in time conveniently, serial port-to-485 communication is a common communication mode in the field of single chip microcomputer communication, a traditional transceiver circuit is used for outputting 3 paths of signals by the single chip microcomputer, namely RXD and TXD of the single chip microcomputer are responsible for transmitting and receiving the data, the rest path is used for switching the working state of a 485 chip, the 485 chip is in a receiving state at a low level, and the 485 chip is in a transmitting state at a high level, but due to the fact that the monitored data are more, the 485 communication transceiver function is required to be realized by using as few pins as possible of the single chip microcomputer under the condition that the port resource of the single chip microcomputer is limited.
Disclosure of utility model
The utility model aims to provide a data monitoring system with an automatic receiving and transmitting function so as to solve the problem that the resources of the pins of the singlechip are limited in the background technology.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
The data monitoring system with the automatic receiving and transmitting functions comprises an acquisition module, a processing module and a communication module, wherein the acquisition module is used for monitoring various data in a machine room, the processing module is used for receiving the data transmitted by the acquisition module, a processing chip is arranged in the processing module, the communication module is used for receiving and transmitting the data, the communication module comprises a connecting circuit, a communication chip and an output circuit, the communication chip comprises an RS485 chip, the connecting circuit is used for controlling the receiving and transmitting of the data, and the output circuit is used for outputting the data.
Preferably, the connection circuit comprises a first resistor R1, a second resistor R2, a third resistor R3 and an optocoupler;
The first end of the first resistor R1 is connected with the RXT pin of the processing chip, the second end of the first resistor R1 is connected with one pin of the RS485 chip, the first end of the third resistor R3 is connected with the TXD pin of the processing chip, the second end of the third resistor R3 is connected with the anode of the photo-coupler diode, the cathode of the photo-coupler diode is grounded, the first end of the second resistor R2 is connected with the power supply VCC, the second end of the second resistor R2 is connected with the collector of the photo-coupler triode, and the second end of the third resistor R3 is also connected with the three pins of the RS485 chip.
Preferably, two pins of the RS485 chip are connected with three pins, four pins of the RS485 chip are grounded, eight pins of the RS485 chip are connected with a power supply VCC, and five pins of the RS485 chip are grounded.
Preferably, the output circuit comprises a fourth resistor R4, a fifth resistor R5 and a protection circuit;
The first end of the fourth resistor R4 is grounded, the second end of the fourth resistor R4 is connected with seven pins of the RS485 chip, the first end of the fifth resistor R5 is connected with six pins of the RS485 chip, and the second end of the fifth resistor R5 is connected with a power supply VCC.
Preferably, the protection circuit includes a first transient suppression diode TVS1, a second transient suppression diode TVS2, a third transient suppression diode TVS3, a sixth resistor R6, a seventh resistor R7, a first self-recovery fuse FU1 and a second self-recovery fuse FU2;
The first transient suppression diode TVS1 is grounded at the first end, the second transient suppression diode TVS1 is connected with the seven pins of the RS485 chip, the first end of the second transient suppression diode TVS2 is connected with the seven pins of the RS485 chip, the second end of the second transient suppression diode TVS2 is connected with the six pins of the RS485 chip, the first end of the third transient suppression diode TVS3 is connected with the six pins of the RS485 chip, the second end of the third transient suppression diode TVS3 is grounded, the first end of the sixth resistor R6 is connected with the seven pins of the RS485 chip, the second end of the sixth resistor R6 is connected with the first end of the first self-recovery fuse FU1, the first end of the seventh resistor R7 is connected with the six pins of the RS485 chip, the second end of the seventh resistor R7 is connected with the first end of the second self-recovery fuse FU2, the second end of the first self-recovery fuse FU1 and the second self-recovery fuse FU2 are connected with an external module.
Compared with the prior art, the utility model has the beneficial effects that:
According to the utility model, the processing chip is connected with the RS485 chip only by using RXD and TXD pins, and the receiving and transmitting mode of the RS485 chip is controlled by using the TXD pins, so that data is automatically received and transmitted, the additional use of pin control is not needed, the pin resources of the processing chip are saved, the optocoupler can play an isolating role, the circuit is protected, and the practicability is stronger.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the utility model;
FIG. 2 is a circuit diagram of a communication module of the utility model;
FIG. 3 is a circuit diagram of a connection circuit of the utility model;
FIG. 4 is a circuit diagram of a communication chip of the utility model;
Fig. 5 is a circuit diagram of an output circuit in the utility model.
In the figure:
1. an acquisition module;
2. A processing module;
3. A communication module; 30. a connection circuit; 31. a communication chip; 32. and an output circuit.
Detailed Description
The following description of the embodiments of the present utility model will be made more apparent and fully hereinafter with reference to the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-5, the present utility model provides the following technical solutions:
The utility model provides a data monitoring system with automatic transceiver function, including collection module 1, processing module 2 and communication module 3, collection module 1 is used for monitoring multiple data in the computer lab, processing module 2 is used for receiving the data of collection module 1 transmission, be equipped with the processing chip in the processing module 2, communication module 3 is used for receiving and dispatching data, communication module 3 includes connecting circuit 30, communication chip 31 and output circuit 32, communication chip 31 includes the RS485 chip, connecting circuit 30 is used for controlling receiving and dispatching data, output circuit 32 is used for outputting data, but automatic receiving and dispatching data, the condition in the data computer lab is known in real time.
In the present embodiment, the connection circuit 30 includes a first resistor R1, a second resistor R2, a third resistor R3, and an optocoupler;
The first end of the first resistor R1 is connected with the RXT pin of the processing chip, the second end of the first resistor R1 is connected with one pin of the RS485 chip, the first end of the third resistor R3 is connected with the TXD pin of the processing chip, the second end of the third resistor R3 is connected with the anode of the optocoupler diode, the cathode of the optocoupler diode is grounded, the first end of the second resistor R2 is connected with the power supply VCC, the second end of the second resistor R2 is connected with the collector of the optocoupler triode, the second end of the third resistor R3 is also connected with the three pins of the RS485 chip, when the TXD pin of the processing chip outputs high level, the optocoupler triode is conducted, and when the TXD pin of the processing chip outputs low level, the optocoupler triode is not conducted.
Specifically, two pins of the RS485 chip are connected with three pins, four pins of the RS485 chip are grounded, eight pins of the RS485 chip are connected with a power supply VCC, and five pins of the RS485 chip are grounded.
Further, the output circuit 32 includes a fourth resistor R4, a fifth resistor R5, and a protection circuit;
The first end of the fourth resistor R4 is grounded, the second end of the fourth resistor R4 is connected with seven pins of the RS485 chip, the first end of the fifth resistor R5 is connected with six pins of the RS485 chip, the second end of the fifth resistor R5 is connected with the power supply VCC, the fourth resistor R4 is a pull-down resistor, and the fifth resistor R5 is a pull-up resistor.
In addition, the protection circuit includes a first transient suppression diode TVS1, a second transient suppression diode TVS2, a third transient suppression diode TVS3, a sixth resistor R6, a seventh resistor R7, a first self-recovery fuse FU1, and a second self-recovery fuse FU2;
The first transient suppression diode TVS1 is grounded at the first end, the first transient suppression diode TVS1 is connected with the RS485 chip at the second end, the second transient suppression diode TVS2 is connected with the RS485 chip at the first end, the second transient suppression diode TVS2 is connected with the RS485 chip at the second end, the third transient suppression diode TVS3 is connected with the RS485 chip at the first end, the third transient suppression diode TVS3 is connected with the ground at the second end, the sixth resistor R6 is connected with the RS485 chip at the seventh end, the sixth resistor R6 is connected with the first end of the first self-recovery fuse FU1, the seventh resistor R7 is connected with the RS485 chip at the first end, the second end of the seventh resistor R7 is connected with the first end of the second self-recovery fuse FU2, the second end of the first self-recovery fuse FU1 and the second self-recovery fuse FU2 are connected with an external module, the first transient suppression diode TVS1, the second transient suppression diode TVS2 and the third transient suppression diode TVS3 are connected with the seventh end, and the second transient suppression diode TVS3 can prevent the first self-recovery fuse FU1 and the second self-recovery fuse FU2 from flowing through the first resistor 7.
When the data monitoring system with the automatic receiving and transmitting function is used, the acquisition module 1 acquires various data in a machine room, including various data such as temperature, humidity and harmful gas, the processing module 2 processes the various data transmitted by the acquisition module 1, and then the data is transmitted to the external module through the communication module 3;
The second resistor R2 is a pull-up resistor, the RXT pin of the processing chip is connected to one pin of the RS485 chip, the TXD pin of the processing chip controls the receiving and transmitting mode of the RS485 chip, the four pins of the RS485 chip are grounded, the serial port of the singlechip is kept at a high level, the TXD pin of the processing chip corresponds to a high level 1, a triode in the optocoupler is conducted, the second resistor R2 is equivalent to direct grounding, the level at the second end of the second resistor R2 is 0, the two pins of the RS485 chip are effective, the RS485 chip is in a receiving mode, when the conversion is in a transmitting mode, a low level initial position is required to be transmitted firstly, the TXD pin of the processing chip outputs a low level, the triode in the optocoupler is not conducted, the three pins of the RS485 chip are effective, the RS485 chip is in a transmitting mode, and the two pins of the RS485 chip are connected with the control pin of the processing chip in a conventional circuit, the TXD pin of the singlechip is saved, and the optocoupler can play an isolating role;
The first transient suppression diode TVS1, the second transient suppression diode TVS2 and the third transient suppression diode TVS3 act together to play a role in preventing surge, and the sixth resistor R6, the seventh resistor R7, the first self-recovery fuse FU1 and the second self-recovery fuse FU2 can prevent overlarge circuit current and play a role in protecting a circuit.
The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (5)
1. Data monitoring system with automatic transceiver function, including collection module (1), processing module (2) and communication module (3), its characterized in that: the system comprises an acquisition module (1), a processing module (2) and a communication module (3), wherein the acquisition module (1) is used for monitoring various data in a machine room, the processing module (2) is used for receiving the data transmitted by the acquisition module (1), a processing chip is arranged in the processing module (2), the communication module (3) is used for receiving and transmitting the data, the communication module (3) comprises a connecting circuit (30), a communication chip (31) and an output circuit (32), the communication chip (31) comprises an RS485 chip, the connecting circuit (30) is used for controlling the receiving and transmitting of the data, and the output circuit (32) is used for outputting the data.
2. The data monitoring system with automatic transceiving functionality according to claim 1, wherein: the connecting circuit (30) comprises a first resistor R1, a second resistor R2, a third resistor R3 and an optocoupler;
The first end of the first resistor R1 is connected with the RXT pin of the processing chip, the second end of the first resistor R1 is connected with one pin of the RS485 chip, the first end of the third resistor R3 is connected with the TXD pin of the processing chip, the second end of the third resistor R3 is connected with the anode of the photo-coupler diode, the cathode of the photo-coupler diode is grounded, the first end of the second resistor R2 is connected with the power supply VCC, the second end of the second resistor R2 is connected with the collector of the photo-coupler triode, and the second end of the third resistor R3 is also connected with the three pins of the RS485 chip.
3. The data monitoring system with automatic transceiving functionality according to claim 1, wherein: two pins of the RS485 chip are connected with three pins, four pins of the RS485 chip are grounded, eight pins of the RS485 chip are connected with a power supply VCC, and five pins of the RS485 chip are grounded.
4. The data monitoring system with automatic transceiving functionality according to claim 1, wherein: the output circuit (32) comprises a fourth resistor R4, a fifth resistor R5 and a protection circuit;
The first end of the fourth resistor R4 is grounded, the second end of the fourth resistor R4 is connected with seven pins of the RS485 chip, the first end of the fifth resistor R5 is connected with six pins of the RS485 chip, and the second end of the fifth resistor R5 is connected with a power supply VCC.
5. The data monitoring system with automatic transceiving functionality according to claim 1, wherein: the protection circuit comprises a first transient suppression diode TVS1, a second transient suppression diode TVS2, a third transient suppression diode TVS3, a sixth resistor R6, a seventh resistor R7, a first self-recovery fuse FU1 and a second self-recovery fuse FU2;
The first transient suppression diode TVS1 is grounded at the first end, the second transient suppression diode TVS1 is connected with the seven pins of the RS485 chip, the first end of the second transient suppression diode TVS2 is connected with the seven pins of the RS485 chip, the second end of the second transient suppression diode TVS2 is connected with the six pins of the RS485 chip, the first end of the third transient suppression diode TVS3 is connected with the six pins of the RS485 chip, the second end of the third transient suppression diode TVS3 is grounded, the first end of the sixth resistor R6 is connected with the seven pins of the RS485 chip, the second end of the sixth resistor R6 is connected with the first end of the first self-recovery fuse FU1, the first end of the seventh resistor R7 is connected with the six pins of the RS485 chip, the second end of the seventh resistor R7 is connected with the first end of the second self-recovery fuse FU2, the second end of the first self-recovery fuse FU1 and the second self-recovery fuse FU2 are connected with an external module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322955737.6U CN220962207U (en) | 2023-11-02 | 2023-11-02 | Data monitoring system with automatic receiving and transmitting function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322955737.6U CN220962207U (en) | 2023-11-02 | 2023-11-02 | Data monitoring system with automatic receiving and transmitting function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220962207U true CN220962207U (en) | 2024-05-14 |
Family
ID=90980815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322955737.6U Active CN220962207U (en) | 2023-11-02 | 2023-11-02 | Data monitoring system with automatic receiving and transmitting function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220962207U (en) |
-
2023
- 2023-11-02 CN CN202322955737.6U patent/CN220962207U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201434881Y (en) | RS485 interface circuit and electric energy meter employing same | |
| CN202735787U (en) | Electric power information machine room environment real-time monitoring system | |
| CN210072603U (en) | USB2.0 changes multichannel serial ports output device | |
| CN101188488B (en) | Control method and device for half duplex communication receiving/transmission | |
| CN220962207U (en) | Data monitoring system with automatic receiving and transmitting function | |
| CN205123764U (en) | Possess optoelectronic isolation and prevent that RS485 communication bus from accounting for electric power instrument of dead trouble function | |
| CN203301498U (en) | Redundant communication circuit based on RS485 serial interface | |
| CN111895614A (en) | Monitoring circuit and system for outdoor unit of air conditioner | |
| CN214311384U (en) | 485 communication circuit of sensor of coal mine safety monitoring system | |
| CN214707733U (en) | Communication circuit of monitoring equipment | |
| CN111404504B (en) | RS485 bus differential signal amplifier | |
| CN210518684U (en) | Mining Ethernet switch | |
| CN209358569U (en) | Differential signaling bus circuit | |
| CN108880826B (en) | RS232 and RS485 combined interface | |
| CN201060545Y (en) | Half-duplex communication transmitting-receiving controller | |
| CN114124613A (en) | Anti-competition industrial 485 networking system and control method thereof | |
| CN219780134U (en) | Beidou message distribution device | |
| CN201467234U (en) | 485 communication circuit capable of automatically controlling transmitting and receiving | |
| CN218897224U (en) | Investigation array module | |
| CN2912063Y (en) | Integrated protector of smart switch | |
| CN214151427U (en) | Control circuit | |
| CN219831693U (en) | 485 communication circuit of high-speed stability | |
| CN217034820U (en) | CAN interface hand-in-hand conference voting terminal | |
| CN218471300U (en) | Isolation communication circuit based on serial port transparent transmission | |
| CN212588423U (en) | Display terminal based on Internet of things |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |