CN207731111U - A kind of input/output unit of analogue quantity switch amount monitoring - Google Patents
A kind of input/output unit of analogue quantity switch amount monitoring Download PDFInfo
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- CN207731111U CN207731111U CN201721802680.4U CN201721802680U CN207731111U CN 207731111 U CN207731111 U CN 207731111U CN 201721802680 U CN201721802680 U CN 201721802680U CN 207731111 U CN207731111 U CN 207731111U
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Abstract
The utility model discloses a kind of input/output units of analogue quantity switch amount monitoring, include main control module, dial-up input module, serial communication interface, switching input module and Analog input mModule, the main control module includes control circuit and selection circuit, the output signal selection input switch amount or analog quantity of the selection circuit dial-up input module, the output end of the selection circuit is connected to the input terminal of control circuit, and the main control module is connect with serial communication interface.The utility model has output function by the real-time monitoring field situation of communication serial port, realizes remote switch control；User can voluntarily be operated by dial-up input module simultaneously, realize that acquisition function is freely distributed；To heterogeneous networks situation, the utility model also realizes stable data transmission.The utility model can be widely applied to Internet of Things monitoring technology field as the input/output unit that a kind of analogue quantity switch amount monitors.
Description
Technical field
The utility model is related to Internet of Things monitoring technology field, especially a kind of input and output of analogue quantity switch amount monitoring
Device.
Background technology
Both at home and abroad to the module for being owned by similar simulation, switching signal acquires, but it possesses relatively fixed switching value
Interface quantity and analog interface quantity, cannot accomplish free configuration, need to do the development cost customized and get higher therewith, and mostly
Do not support communication serial port, level of integrated system is low, and the universal product is difficult to meet the requirement of flexible configuration in the market.
Utility model content
In order to solve the above-mentioned technical problem, the purpose of this utility model is：There is provided it is a kind of it is small, without changing hardware mould
The input/output unit that block and the analogue quantity switch amount for meeting free configuration needs monitor.
Technical solution used by the utility model is：A kind of input/output unit of analogue quantity switch amount monitoring, including
There are main control module, dial-up input module, serial communication interface, switching input module and Analog input mModule, the master control
Module includes control circuit and selection circuit, and the first input end of the selection circuit is for receiving switching input module
Output signal, the second input terminal of the selection circuit are used to receive the output signal of Analog input mModule, the selection electricity
The third input terminal on road is used to receive the output signal of dial-up input module, and the output end of the selection circuit is connected to control electricity
The input terminal on road, the main control module are connect with serial communication interface.
Further, further include have the first level conversion and interference and insulation circuit, lightning protection module, input bleeder circuit,
First input filter circuit, voltage and current selecting switch, current sampling resistor and the second input filter circuit；The analog quantity is defeated
The output end for entering module is connected to the input terminal of voltage and current selecting switch, the first output end of the voltage and current selecting switch
It is connected to the first input end of input bleeder circuit, the output end of the input bleeder circuit is connected by the first input filter circuit
It is connected to the first input end of selection circuit, the second output terminal of the voltage and current selecting switch passes sequentially through current sampling resistor
The second input terminal of selection circuit is connected to the second input filter circuit, the output end of the switching input module leads to successively
It crosses lightning protection module and the first level conversion and interference and insulation circuit is connected to the second input terminal of input bleeder circuit.
Further, further include have second electrical level convert and interference and insulation circuit, the control circuit include asynchronous serial port
USART, the serial communication interface are connected to the asynchronous serial port of control circuit by second electrical level conversion and interference and insulation circuit
USART。
Further, further include having off line memory module, the control circuit includes iic bus interface, and the off line is deposited
Storage module is connected to iic bus interface.
Further, the control circuit is also associated with A/D switching reference voltages modules
Further, further include having 2 road relay output modules, the control circuit includes GPIO output interfaces, described
GPIO output interfaces are connected to the input terminal of 2 road relay output modules.
The utility model has the beneficial effects that：The utility model is for the complicated ring such as open air, warehouse, industry spot and computer room
Border is acquired by data and uploads data by communication serial port, and real-time monitoring field situation has output function, realizes long-range
Switch control；Meanwhile can voluntarily be operated by dial-up input module when user needs to switch its acquisition function, it realizes
Acquisition function is freely distributed；To heterogeneous networks situation, the utility model also realizes stable data transmission, and supports the guarantor of data
It deposits and exports, the monitoring data that especially auto-complete off line stores when network is normal.
Description of the drawings
Fig. 1 is the structure drawing of device of the utility model.
Specific implementation mode
Specific embodiment of the present utility model is described further below in conjunction with the accompanying drawings：
Referring to Fig.1, a kind of input/output unit of analogue quantity switch amount monitoring includes main control module, dial-up input mould
Block, serial communication interface, switching input module and Analog input mModule, the main control module include control circuit and choosing
Circuit is selected, the first input end of the selection circuit is used to receive the output signal of switching input module, the selection circuit
The second input terminal be used to receive the output signal of Analog input mModule, the third input terminal of the selection circuit is for receiving
The output end of the output signal of dial-up input module, the selection circuit is connected to the input terminal of control circuit, the master control mould
Block is connect with serial communication interface, and the serial communication interface supports RS485 level.
It is further used as preferred embodiment, further includes having the first level conversion and interference and insulation circuit, lightning protection
Module, input bleeder circuit, the first input filter circuit, voltage and current selecting switch, current sampling resistor and the second input filter
Wave circuit；The output end of the Analog input mModule is connected to the input terminal of voltage and current selecting switch, the voltage and current
First output end of selecting switch is connected to the first input end of input bleeder circuit, and the output end of the input bleeder circuit is logical
Cross the first input end that the first input filter circuit is connected to selection circuit, the second output terminal of the voltage and current selecting switch
It passes sequentially through current sampling resistor and the second input filter circuit is connected to the second input terminal of selection circuit, the switching value is defeated
The output end for entering module passes sequentially through lightning protection module and the first level conversion and interference and insulation circuit is connected to input partial pressure
Second input terminal of circuit.
It is further used as preferred embodiment, further includes having second electrical level conversion and interference and insulation circuit, the control
Circuit includes asynchronous serial port USART, and the serial communication interface is converted by second electrical level and interference and insulation circuit is connected to
The asynchronous serial port USART of control circuit.
It is further used as preferred embodiment, further includes having off line memory module, the control circuit includes IIC total
Line interface, the off line memory module are connected to iic bus interface.
Off line memory module be bi-directionally connected communicating with control circuit by the form of iic bus, can be in module power down
The function that preceding off line memory module is configured, the state before module re-reads power down after the power is turned on.
It is further used as preferred embodiment, the control circuit is also associated with A/D switching reference voltages modules
It is further used as preferred embodiment, further includes having the 2 road relay output modules, the control circuit to include
GPIO output interfaces, the GPIO output interfaces are connected to the input terminal of 2 road relay output modules.
It is further used as preferred embodiment, the dial-up input module is controlled using 8 bit address dial-ups, realizes 256
Middle combination, possesses itself distinctive address code in bus communication, and 1 baud rate option code may be selected by dial-up
Baud rate, flexible combination communication setting.It can be realized using dial-up input module and selection circuit to acquiring each road signal
Being switched fast for each signal acquisition can be realized by toggle switch without changing original hardware circuit in control.
It is to be illustrated to the preferable implementation of the utility model, but the utility model creation is not limited to institute above
State embodiment, those skilled in the art can also make various etc. without departing from the spirit of the present invention
With transforming or replacing, these equivalent deformations or replacement are all contained in the application claim limited range.
Claims (6)
1. a kind of input/output unit of analogue quantity switch amount monitoring, it is characterised in that：Include main control module, dial-up input mould
Block, serial communication interface, switching input module and Analog input mModule, the main control module include control circuit and choosing
Circuit is selected, the first input end of the selection circuit is used to receive the output signal of switching input module, the selection circuit
The second input terminal be used to receive the output signal of Analog input mModule, the third input terminal of the selection circuit is for receiving
The output end of the output signal of dial-up input module, the selection circuit is connected to the input terminal of control circuit, the master control mould
Block is connect with serial communication interface.
2. a kind of input/output unit of analogue quantity switch amount monitoring according to claim 1, it is characterised in that：Further include
There are the first level conversion and interference and insulation circuit, lightning protection module, input bleeder circuit, the first input filter circuit, voltage
Current selected switch, current sampling resistor and the second input filter circuit；The output end of the Analog input mModule is connected to
First output end of the input terminal of voltage and current selecting switch, the voltage and current selecting switch is connected to input bleeder circuit
First input end, the output end of the input bleeder circuit by the first input filter circuit be connected to selection circuit it is first defeated
Enter end, the second output terminal of the voltage and current selecting switch passes sequentially through current sampling resistor and the second input filter circuit connects
It is connected to the second input terminal of selection circuit, the output end of the switching input module passes sequentially through lightning protection module and first
Level conversion and interference and insulation circuit are connected to the second input terminal of input bleeder circuit.
3. a kind of input/output unit of analogue quantity switch amount monitoring according to claim 1, it is characterised in that：Further include
Second electrical level is converted and interference and insulation circuit, and the control circuit includes asynchronous serial port USART, and the serial communication interface is logical
It crosses second electrical level conversion and interference and insulation circuit is connected to the asynchronous serial port USART of control circuit.
4. a kind of input/output unit of analogue quantity switch amount monitoring according to claim 1, it is characterised in that：Further include
It includes iic bus interface to have off line memory module, the control circuit, and the off line memory module is connected to iic bus and connects
Mouthful.
5. a kind of input/output unit of analogue quantity switch amount monitoring according to claim 1, it is characterised in that：The control
Circuit processed is also associated with A/D switching reference voltages modules.
6. a kind of input/output unit of analogue quantity switch amount monitoring according to claim 1, it is characterised in that：Further include
It includes GPIO output interfaces to have 2 road relay output modules, the control circuit, and the GPIO output interfaces are connected to 2 tunnels
The input terminal of relay output module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721802680.4U CN207731111U (en) | 2017-12-19 | 2017-12-19 | A kind of input/output unit of analogue quantity switch amount monitoring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721802680.4U CN207731111U (en) | 2017-12-19 | 2017-12-19 | A kind of input/output unit of analogue quantity switch amount monitoring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207731111U true CN207731111U (en) | 2018-08-14 |
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ID=63085884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721802680.4U Active CN207731111U (en) | 2017-12-19 | 2017-12-19 | A kind of input/output unit of analogue quantity switch amount monitoring |
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| Country | Link |
|---|---|
| CN (1) | CN207731111U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110621109A (en) * | 2019-04-02 | 2019-12-27 | 杭州方千科技有限公司 | Signal self-adaptive light supplementing device |
-
2017
- 2017-12-19 CN CN201721802680.4U patent/CN207731111U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110621109A (en) * | 2019-04-02 | 2019-12-27 | 杭州方千科技有限公司 | Signal self-adaptive light supplementing device |
| CN110621109B (en) * | 2019-04-02 | 2021-07-20 | 杭州方千科技有限公司 | Signal self-adaptive light supplementing device |
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Effective date of registration: 20200320 Address after: 510000 No.11, caipin Road, Huangpu District (high tech Industrial Development Zone), Guangzhou City, Guangdong Province a504a509 (office only) Patentee after: Zhuo zhensizhong (Guangzhou) Technology Co., Ltd Address before: 510670 unit 604, B1 building, 162 science Avenue, Science City, Guangzhou, Guangdong. Patentee before: GUANGZHOU ZHUOZHEN INTELLIGENT TECHNOLOGY Co.,Ltd. |