CN203177890U - Analog signal detection device based on Modbus protocol - Google Patents
Analog signal detection device based on Modbus protocol Download PDFInfo
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- CN203177890U CN203177890U CN 201320223902 CN201320223902U CN203177890U CN 203177890 U CN203177890 U CN 203177890U CN 201320223902 CN201320223902 CN 201320223902 CN 201320223902 U CN201320223902 U CN 201320223902U CN 203177890 U CN203177890 U CN 203177890U
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Abstract
Provided is an analog signal detection device based on the Modbus protocol, the device belongs to the field of analog signal detection and aims to solve the problem that an analog signal detection device is not provided with an integrated system of I/V conversion, signal filtering, amplification, analog-to-digital conversion, alarm, a man-machine interface and a communication interface. An output terminal of a sensor is connected with an input terminal of a current/voltage conversion device, an output terminal of the current/voltage conversion device is connected with an input terminal of a signal filtering device, and an output terminal of the signal filtering device is connected with an input terminal of a signal amplification device. An output terminal of the signal amplification device is connected with an input terminal of an A/D converter, an output terminal of the A/D converter is connected with an acquisition signal input terminal of an ARM microprocessor, an alarm signal output terminal of the ARM microprocessor is connected with an alarm signal input terminal of an alarm, and the ARM microprocessor is connected with a host via an RS-485 interface based on the Modbus communication protocol. The analog signal detection device is used for the detection and the processing of analog signals.
Description
Technical field
The utility model relates to a kind of analog signal detection device, it is characterized in that using the Modbus agreement.
Background technology
Along with the progress of electronics and infotech and the popularization and application of computing machine, human own through carrying out the transition to digital Age from the simulation epoch, by the powerful digital computation capability of computing machine, various digital products are a feast for the eyes, various digital signal processing devices are applied to each corner in the life especially, so the analog signal detection device is absolutely necessary.
Analog signal detection device based on the Modbus agreement can be converted into digital signal with voltage signal after processing such as amplification, filtering, handled by microprocessor again, report to the police then and show, as man-machine interface, device can carry out networking by the RS-485 interface simultaneously with button.
At present the analog signal detection device also neither one can to collect I/V conversion, signal amplification, filtering, analog to digital conversion, warning, man-machine interface and communication interface be the holonomic system of one.
The utility model content
The utility model be for solve analog signal detection device at present also neither one can to collect I/V conversion, signal amplification, filtering, analog to digital conversion, warning, man-machine interface and communication interface be the problem of the holonomic system of one, a kind of analog signal detection device is provided.
Analog signal detection device based on the Modbus agreement described in the utility model, it comprises sensor, current/voltage-converted device, signal filtering device, signal amplifying apparatus, A/D converter, ARM microprocessor, alarm and main frame.
The current signal output end of sensor links to each other with the current signal input end of current/voltage-converted device, the voltage signal output end of described current/voltage-converted device links to each other with the signal input part of signal filtering device, the filtering signal output terminal of signal filtering device links to each other with the signal input part of signal amplifying apparatus, the amplifying signal output terminal of signal amplifying apparatus links to each other with the input end of analog signal of A/D converter, the digital signal output end of A/D converter links to each other with the collection signal input part of ARM microprocessor, the alarm signal output ends of ARM microprocessor links to each other with the alerting signal input end of alarm, and the ARM microprocessor links to each other with main frame by RS-485 Application of Interface Modbus communications protocol.
The advantage of the analog signal detection device based on the Modbus agreement described in the utility model has:
Analog signal detection device based on the Modbus agreement described in the utility model adopts signal to handle and embedded system technology, in conjunction with current RS-485 field bus technique and the Modbus communications protocol very widely used, having realized one well, can to collect I/V conversion, signal filtering, signal amplification, analog to digital conversion, warning, man-machine interface and communication interface be the holonomic system of one.
The principle of work of the analog signal detection device based on the Modbus agreement described in the utility model is:
1, external sensor becomes the external information of experiencing into the standard industry current signal of 4～20mA, and the current/voltage-converted device is converted to voltage signal with the standard industry current signal of 4～2OmA;
2, the voltage signal that is converted to has guaranteed that through the signal filtering device filtering as much as possible is mixed in noise wherein under the prerequisite of signal prototype;
3, the voltage signal that obtains of filtering is amplified to suitable relatively scope through signal amplifying apparatus with signal;
4, the voltage signal after the amplification utilizes high-precision A/D converter accurately simulating signal to be converted into digital signal;
5, the digital signal that is converted to is transferred to the ARM microprocessor digital signal that collects is handled the acquisition parameters needed, and described disposal route can adopt existing data to handle according to actual needs and analytical approach both can;
6, the signal that collects is handled after, the safe range of the expection of result and relevant parameter is compared, and then whether need to obtain the situation of reporting to the police, thereby avoid the generation of accident or even disaster in time, warning function is diversified, comprises audible alarm, light warning etc.
Analog signal detection device based on the Modbus agreement described in the utility model considers that in the market various industrial control softwares are to the support of communication interface, the analog signal detection device is integrated RS-485 communication interface, and with the agreement of Modbus as the application layer message transmissions, compatible well each big industry control and configuration software on the market, meanwhile, range of application and the application of analog signal detection device have also been expanded as much as possible.
Description of drawings
Fig. 1 is based on the structural representation of the analog signal detection device of Modbus agreement.
Embodiment
Embodiment one: present embodiment is described below in conjunction with Fig. 1, the described analog signal detection device based on the Modbus agreement of present embodiment, it comprises sensor 1, current/voltage-converted device 2, signal filtering device 3, signal amplifying apparatus 4, A/D converter 5, ARM microprocessor 6, alarm 7 and main frame 8;
The current signal output end of sensor 1 links to each other with the current signal input end of current/voltage-converted device 2, the voltage signal output end of described current/voltage-converted device 2 links to each other with the signal input part of signal filtering device 3, the filtering signal output terminal of signal filtering device 3 links to each other with the signal input part of signal amplifying apparatus 4, the amplifying signal output terminal of signal amplifying apparatus 4 links to each other with the input end of analog signal of A/D converter 5, the digital signal output end of A/D converter 5 links to each other with the collection signal input part of ARM microprocessor 6, the alarm signal output ends of ARM microprocessor 6 links to each other with the alerting signal input end of alarm 7, and ARM microprocessor 6 links to each other with main frame 8 by RS-485 Application of Interface Modbus communications protocol.
Embodiment two: below in conjunction with Fig. 1 present embodiment is described, present embodiment and embodiment one described difference based on Modbus analog signal detection device are that alarm 7 is audible-visual annunciator.
Embodiment three: the difference of the described analog signal detection device based on the Modbus agreement of present embodiment and embodiment one is that described alarm 7 is voice guard.
Embodiment four: the difference of the described analog signal detection device based on the Modbus agreement of present embodiment and embodiment three is that described voice guard is hummer 7-1.
Embodiment five: the difference of the described analog signal detection device based on the Modbus agreement of present embodiment and embodiment one is that described alarm 7 is light crossing-signal.
Embodiment six: the difference of the described analog signal detection device based on the Modbus agreement of present embodiment and embodiment five is that described light crossing-signal is display screen 7-2.
Embodiment six: the difference of the described analog signal detection device based on the Modbus agreement of present embodiment and embodiment two is that described alarm 7 is to be composed in parallel by hummer 7-1 and display screen 7-2.
The structure of the analog signal detection device based on the Modbus agreement described in the utility model is not limited to the concrete structure that the respective embodiments described above are put down in writing, and can also be the reasonable combination of the concrete technical characterictic put down in writing of the respective embodiments described above.
Claims (7)
1. based on the analog signal detection device of Modbus agreement, it is characterized in that it comprises sensor (1), current/voltage-converted device (2), signal filtering device (3), signal amplifying apparatus (4), A/D converter (5), ARM microprocessor (6), alarm (7) and main frame (8);
The current signal output end of sensor (1) links to each other with the current signal input end of current/voltage-converted device (2), the voltage signal output end of described current/voltage-converted device (2) links to each other with the signal input part of signal filtering device (3), the filtering signal output terminal of signal filtering device (3) links to each other with the signal input part of signal amplifying apparatus (4), the amplifying signal output terminal of signal amplifying apparatus (4) links to each other with the input end of analog signal of A/D converter (5), the digital signal output end of A/D converter (5) links to each other with the collection signal input part of ARM microprocessor (6), the alarm signal output ends of ARM microprocessor (6) links to each other with the alerting signal input end of alarm (7), and ARM microprocessor (6) links to each other with main frame (8) by RS-485 Application of Interface Modbus communications protocol.
2. according to the described analog signal detection device based on the Modbus agreement of claim 1, it is characterized in that described alarm (7) is audible-visual annunciator.
3. according to the described analog signal detection device based on the Modbus agreement of claim 1, it is characterized in that described alarm (7) is voice guard.
4. according to the described analog signal detection device based on the Modbus agreement of claim 3, it is characterized in that described voice guard is hummer (7-1).
5. according to the described analog signal detection device based on the Modbus agreement of claim 1, it is characterized in that described alarm (7) is light crossing-signal.
6. according to the described analog signal detection device based on the Modbus agreement of claim 5, it is characterized in that described light crossing-signal is display screen (7-2).
7. according to the described analog signal detection device based on the Modbus agreement of claim 2, it is characterized in that described audible-visual annunciator is to be composed in parallel by hummer (7-1) and display screen (7-2).
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201320223902 CN203177890U (en) | 2013-04-27 | 2013-04-27 | Analog signal detection device based on Modbus protocol |
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| CN 201320223902 CN203177890U (en) | 2013-04-27 | 2013-04-27 | Analog signal detection device based on Modbus protocol |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107218998A (en) * | 2017-05-26 | 2017-09-29 | 南京擎能自动化设备有限公司 | Striation formula sound wave sound level display |
| CN108731705A (en) * | 2018-02-07 | 2018-11-02 | 大连理工大学 | A kind of Sensor Analog Relay System device of parallel duplex Modbus communication protocols |
-
2013
- 2013-04-27 CN CN 201320223902 patent/CN203177890U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107218998A (en) * | 2017-05-26 | 2017-09-29 | 南京擎能自动化设备有限公司 | Striation formula sound wave sound level display |
| CN108731705A (en) * | 2018-02-07 | 2018-11-02 | 大连理工大学 | A kind of Sensor Analog Relay System device of parallel duplex Modbus communication protocols |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130904 Termination date: 20210427 |
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| CF01 | Termination of patent right due to non-payment of annual fee |