CN218181361U - HART equipment comprehensive acquisition system with function safety - Google Patents
HART equipment comprehensive acquisition system with function safety Download PDFInfo
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- CN218181361U CN218181361U CN202222869427.8U CN202222869427U CN218181361U CN 218181361 U CN218181361 U CN 218181361U CN 202222869427 U CN202222869427 U CN 202222869427U CN 218181361 U CN218181361 U CN 218181361U
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Abstract
The application relates to a HART equipment comprehensive acquisition system with functional safety, which comprises a data acquisition module, a data acquisition module and a data processing module, wherein the data acquisition module is used for outputting original data when acquiring data sent by a safety instrument system; the conversion module is connected with the data acquisition module and used for outputting conversion data when the original data are received; the detection module is connected with the conversion module in parallel and is used for outputting a high-frequency signal when the original data and the conversion data are received and the time difference value of the received original data and the received conversion data is smaller than a preset value; the wireless transmission module is connected with the output end of the conversion module, and the power connection end of the wireless transmission module is connected with the power supply module; and the first switch module is used for conducting the power supply module and the wireless transmission module when receiving the high-frequency signal. The method and the device have the effect of ensuring that the remote management terminal obtains accurate data.
Description
Technical Field
The application relates to the field of industrial Internet of things, in particular to a HART equipment comprehensive acquisition system with function safety.
Background
Safety Instrumentation Systems (SIS) are composed of a variety of smart instrumentation devices, such as electronic devices having a self-diagnostic function, e.g., an EJA310A absolute pressure transmitter, an EJA130A high static pressure and differential pressure transmitter, and a flow meter. The data acquisition module is used for acquiring original data of the intelligent instrument equipment through an HART protocol, transmitting the original data to the data converter and remotely transmitting the original data to the remote management terminal through the data converter.
The HART protocol (Highway Addressable Remote transmitter), an open communication protocol for Highway Addressable Remote sensors, is a communication protocol between field intelligent instruments and control devices introduced by rosemont corporation in the united states and 1985, and has become an industry standard for global intelligent instruments.
However, the current converter does not have a fault detection function, and when the converter fails, the remote management terminal cannot accurately acquire data uploaded by the HART smart device, and even the remote management terminal loses the supervision capability of the HART smart device.
SUMMERY OF THE UTILITY MODEL
In order to ensure that a remote management terminal acquires accurate data, the HART equipment comprehensive acquisition system with the function safety is provided.
The application provides a have safe HART equipment of function and synthesize collection system adopts following technical scheme:
a HART device comprehensive acquisition system with functional safety comprises;
the data acquisition module is used for outputting original data when acquiring data sent by the safety instrument system;
the conversion module is connected with the data acquisition module and used for outputting conversion data when the original data are received;
the detection module is connected with the conversion module in parallel and is used for outputting a high-frequency signal when the original data and the conversion data are received and the time difference value of the received original data and the received conversion data is smaller than a preset value;
the wireless transmission module is connected with the output end of the conversion module, and the power connection end of the wireless transmission module is connected with the power supply module; and
the first switch module is used for conducting the power supply module and the wireless transmission module when the high-frequency signal is received.
By adopting the technical scheme, the data acquisition module outputs original data when acquiring data sent by the safety instrument system, the conversion module outputs conversion data after receiving the original data, the detection module is used for receiving the original data and the conversion data, when the time difference value of the detection module receiving the original data and the conversion data is smaller than a preset value, the detection module outputs a high-frequency signal, and the first switch module switches on the power supply module and the wireless transmission module after receiving the high-frequency signal; the real-time performance of the data sent by the safety instrument system is detected by the time difference value of the original data and the converted data received by the detection module, and the accurate data obtained by the remote management terminal can be guaranteed.
Optionally, the power supply further comprises an indicator light, and the indicator light is connected with the power supply module through the first switch module.
Optionally, the power supply further comprises a second switch module and an alarm module which are connected in series with the power supply module;
the detection module outputs a low-frequency signal when the time difference value of the received original data and the received converted data is smaller than a preset value;
the second switch module is used for conducting the power supply module and the alarm module when receiving the low-frequency signal.
Optionally, the alarm module is a buzzer or an audible and visual alarm.
Optionally, the power module is a battery or an external power supply.
Optionally, the data acquisition module provides 16 channels of data 4-20mA signals as input.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the system comprises a data acquisition module, a conversion module, a detection module, a power supply module and a wireless transmission module, wherein the data acquisition module is used for acquiring data sent by a safety instrument system, the conversion module is used for outputting original data after receiving the original data, the detection module is used for receiving the original data and the converted data, when the time difference value between the detection module and the detection module is smaller than a preset value, the detection module outputs a high-frequency signal, and the first switch module is used for switching on the power supply module and the wireless transmission module after receiving the high-frequency signal; the real-time performance of the data sent by the safety instrument system is detected by the time difference value of the original data and the converted data received by the detection module, and the accurate data obtained by the remote management terminal can be guaranteed.
2. The indicating lamp in the system is convenient for field personnel to find the problem of data transmission in time, and the alarm module is convenient for the staff at the remote management terminal to find the problem of data transmission in time.
Drawings
Fig. 1 is a system diagram of an embodiment of the present application.
Description of reference numerals: 1. a data acquisition module; 2. a conversion module; 3. a detection module; 4. a first switch module; 5. a second switch module; 6. a power supply module; 7. a wireless transmission module; 8. an indicator light; 9. and an alarm module.
Detailed Description
The present application is described in further detail below with reference to the attached drawings.
Referring to fig. 1, the HART device integrated collection system with functional safety includes a data acquisition module 1, a conversion module 2, a detection module 3, a first switch module 4, a second switch module 5, a power module 6, a wireless transmission module 7, an indicator light 8 and an alarm module 9.
The data acquisition module 1 is connected with a safety instrument system, the safety instrument system is composed of various types of intelligent instrument equipment, and the data acquisition module 1 is used for acquiring operation parameters of the intelligent instrument equipment and generating result data. The data acquisition module 1 is an HART splitter for receiving the result data sent by the smart meter device and outputting the original data when receiving the result data. It should be noted that the HART splitter does not cause loss or corruption of the resulting data, and in addition, the HART splitter can also transmit 16 signal channels, each for transmitting the resulting data with an analog quantity of 4-20 mA.
The conversion module 2 is connected with the data acquisition module 1, and the conversion module 2 is an HART protocol converter. In this example, the protocol used by the smart meter device to send the result data is HART protocol, and in order to enable the result data to be sent to the remote management terminal, the protocol used by the result data needs to be switched to a protocol adapted to the remote management terminal, such as RS-485 and TCP. The protocol adopted by the conversion data is the protocol adapted by the remote management terminal.
The remote management terminal is an electronic device such as a computer, a mobile phone and a tablet.
The detection module 3 is connected with the conversion module 2 in parallel, the detection module 3 is an STM32 chip, the STM32 chip is used for receiving original data and conversion data, whether the time difference value of the received original data and the conversion data is smaller than a preset value or not is calculated, and when the difference value is smaller than the preset value, the STM32 chip outputs a high-frequency signal; otherwise, when the difference is not smaller than the preset value, the STM32 chip outputs a low-frequency signal. In the embodiment of the present application, the preset value is 0.5S, and in other embodiments, the preset value may be set according to actual needs, which is not limited herein.
The first switch module 4 and the second switch module 5 are both connected with the power module 6. The first switch module 4 is an NPN type triode, the base electrode of the NPN type triode is connected with the detection module 3, the collector electrode of the NPN type triode is connected with the power supply module 6, the emitter electrode of the NPN type triode is connected with the wireless transmission module 7 and the indicator lamp 8, the wireless transmission module 7 and the indicator lamp 8 are connected in parallel, one end, far away from the NPN type triode, of the wireless transmission module 7 is in communication connection with the remote management terminal, and one end, far away from the NPN type triode, of the indicator lamp 8 is grounded.
When receiving the high-frequency signal, the NPN type triode turns on the power module 6 and the wireless transmission module 7, and also turns on the power module 6 and the indicator light 8. Therefore, when the indicator light 8 is turned on, it indicates that the data transmission is normal, and when the indicator light 8 is turned off, it indicates that the data transmission is abnormal, and the converter is broken.
The second switch module 5 is a PNP type triode, the base of the PNP type triode is connected with the detection module 3, the collector of the PNP type triode is connected with the power module 6, the emitter of the PNP type triode is connected with the alarm module 9, and the PNP type triode is used for receiving the low-frequency signal output by the detection module 3 and conducting the power module 6 and the alarm module 9 after receiving the low-frequency signal. In the embodiment of the present application, the power module 6 employs a battery or an external power supply, the battery may be a lead-acid battery or a lithium ion battery, and the external power supply is an indoor power supply where the safety instrument system is located.
The wireless transmission module 7 adopts a WIFI communication module or a 4G/5G communication module, the alarm module 9 adopts a buzzer or an audible and visual alarm, and the buzzer or the audible and visual alarm conveniently informs remote management terminal personnel.
The wireless transmission module 7 is connected with the conversion module 2, and the wireless transmission module 7 can receive conversion data output by the conversion module 2 after being electrified and transmit the conversion data to the remote management terminal.
Meanwhile, the working environment temperature of the HART equipment comprehensive acquisition system with the function safety is-20-75 ℃, and the working environment humidity is 5-95% (without condensation).
The implementation principle of the integrated HART equipment acquisition system with functional safety in the embodiment of the application is as follows: the data acquisition module 1 acquires a safety instrument system and then transmits the safety instrument system to the conversion module 2, and the conversion module 2 converts the HART protocol into a connection protocol after receiving data; the detection module 3 receives the original data and the conversion data, if the time difference between the received original data and the received conversion data is smaller than a preset value, a high-frequency signal is output, the first switch module 4 receives the high-frequency signal and then conducts the connection between the power supply module 6 and the wireless transmission module 7, and meanwhile conducts the connection between the power supply module 6 and the indicator light 8, so that the output conversion data of the conversion module 2 can be transmitted to a remote management terminal through the wireless transmission module; if the time difference between the received original data and the received converted data is not less than the preset value, a low-frequency signal is output, the second switch module 5 switches on the connection between the power module 6 and the alarm module 9 after receiving the low-frequency signal, and the alarm module 9 gives an alarm to inform a worker of solving the problem.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (6)
1. A HART device integrated acquisition system with functional safety, comprising:
the data acquisition module (1) is used for outputting original data when acquiring data sent by the safety instrument system;
the conversion module (2) is connected with the data acquisition module (1) and is used for outputting conversion data when the original data are received;
the detection module (3) is connected with the conversion module (2) in parallel and is used for outputting a high-frequency signal when the original data and the conversion data are received and the time difference value of the received original data and the received conversion data is smaller than a preset value;
the wireless transmission module (7) is connected with the output end of the conversion module (2), and the power connection end of the wireless transmission module (7) is connected with the power supply module (6); and
a first switch module (4), wherein the first switch module (4) is used for conducting the power supply module (6) and the wireless transmission module (7) when receiving the high-frequency signal.
2. The integrated HART device acquisition system with functional safety as claimed in claim 1, wherein: the power supply device is characterized by further comprising an indicator lamp (8), wherein the indicator lamp (8) is connected with the power supply module (6) through the first switch module (4).
3. The system of claim 1, wherein the HART device integrated acquisition system with functional safety is: the alarm device also comprises a second switch module (5) and an alarm module which are connected in series with the power module (6);
the detection module (3) outputs a low-frequency signal when the time difference value of the received original data and the received converted data is smaller than a preset value;
and the second switch module (5) is used for conducting the power supply module (6) and the alarm module when receiving the low-frequency signal.
4. The system of claim 3, wherein the HART device integrated acquisition system with functional safety is: the alarm module (9) is a buzzer or an audible and visual alarm.
5. The system of claim 1, wherein the HART device integrated acquisition system with functional safety is: the power module (6) is a lead-acid storage battery or a lithium ion battery.
6. The integrated HART device acquisition system with functional safety as claimed in claim 1, wherein: the data acquisition module (1) provides a plurality of signal input channels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222869427.8U CN218181361U (en) | 2022-10-28 | 2022-10-28 | HART equipment comprehensive acquisition system with function safety |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222869427.8U CN218181361U (en) | 2022-10-28 | 2022-10-28 | HART equipment comprehensive acquisition system with function safety |
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| Publication Number | Publication Date |
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| CN218181361U true CN218181361U (en) | 2022-12-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202222869427.8U Active CN218181361U (en) | 2022-10-28 | 2022-10-28 | HART equipment comprehensive acquisition system with function safety |
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