CN102176210B - Universal data acquisition system - Google Patents
Universal data acquisition system Download PDFInfo
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- CN102176210B CN102176210B CN 201010565550 CN201010565550A CN102176210B CN 102176210 B CN102176210 B CN 102176210B CN 201010565550 CN201010565550 CN 201010565550 CN 201010565550 A CN201010565550 A CN 201010565550A CN 102176210 B CN102176210 B CN 102176210B
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Abstract
The invention provides a universal data acquisition system. The system comprises a data acquisition device and a upper computer, wherein the data acquisition device comprises a microprocessor, a reusable data acquisition channel, a memory expansion module and an interface module; the microprocessor is connected with the reusable data acquisition channel, the memory expansion module and the interface module respectively; the reusable data acquisition channel is defined with different communication protocols, corresponding communication protocols are selected according to the requirement of practical tests, and different output signals with the same output signal type are transmitted through the same data acquisition channel by using the selected communication protocol; and the data acquisition device is communicated with the upper computer through the interface module. Therefore, the universal data acquisition system has the advantages that sensors with consistent function and same output signal type can reuse the same data acquisition channel, and the safety performance of elevators, pumps, air compressors, ventilators and other mineral machinery and electrical equipment can be tested by using the same data acquisition system regarding different test requirements.
Description
Technical field
The present invention relates to measure and control field employed a kind of general data acquisition system (DAS) when particularly the security performance of mining electromechanical equipment being tested.
Background technology
At present, the safety test system of mining electromechanical equipment is all for specific mining electromechanical equipment exploitation, for example: for mining main drainage system, can use water pump security performance tester to detect; To the mine lift system, the equipment such as available mine hoist safety ability meter and steel rope flow detector detect.
Regulation according to " safety regulations in coal mine ", there is multiple identical or close test event in the security performance test macro of the mining electromechanical equipment that hoister, ventilation blower etc. are different, in existing monitoring device, adopting the close sensing detection device of performance, therefore, both wasted resource, simultaneously, enterprise need to purchase corresponding safety test system for different mining electromechanical equipments, has increased the weight of the operation burden of enterprise.
Summary of the invention
For above defective, the invention provides a kind of general data acquisition system (DAS), can realize the security performance of different mining electromechanical equipments is tested.
Technical scheme provided by the invention is as follows:
The invention provides a kind of general data acquisition system (DAS), comprise data collector and host computer, described data collector comprises: microprocessor, reusable data acquisition channel, memory extensive module and interface module, wherein, described microprocessor is connected with described reusable data acquisition channel, described memory extensive module and the interface module of being connected respectively; Described reusable data acquisition channel is defined different communications protocol, demand according to the reality test is selected corresponding communications protocol, and uses the communications protocol of selecting to have the different output signals of identical output signal type by same data acquisition channel transmission; Described data collector is by described interface module and described host computer communication.
Preferably, described microprocessor adopts embedded developping system.
Preferably, described memory extensive module comprises: SDRAM module and/or 2M Flash module.
Preferably, described interface module comprises: be used for usb interface module and/or TFT LCD MODULE and/or wireless transport module with described host computer communication.
Preferably, described reusable data acquisition channel comprises: reusable analog data collection passage, reusable on-off value data acquisition passage, reusable digital data acquisition channel; Wherein, described reusable analog data collection passage is used for transmitting the output signal of following sensor: hoister, ventilation blower, air compressor and used temperature sensor, pressure transducer, Optic Sensors in Power System, displacement transducer and the flow sensor of main drainage system test; Described reusable on-off value data acquisition passage is used for the switching value signal of transmission hoister, ventilation blower, air compressor and main drainage system thermometrically; The output signal of the digital transducer that described reusable digital data acquisition channel adopts when being used for transmission measurement hoister, ventilation blower, air compressor and main drainage arrangement.
Preferably, when described reusable data acquisition channel was described reusable analog data collection passage, described reusable analog data collection passage was connected in series by sensor, signal conditioning circuit and analog to digital conversion circuit; When the required signal transmission line of described sensor was longer, described sensor and described signal conditioning circuit adopted wireless connections.
Preferably, described host computer is by Labview software and described data collector communication.
Preferably, described host computer is connected by USB port with described data collector; Described Labview software is finished read-write process to described USB port data by calling dynamic link library.
Preferably, described Labview software is finished read-write process to described USB port data by calling dynamic link library, be specially: after described Labview software is described reusable data acquisition channel configuration communications protocol, calls communication and verify sub-VI, the sub-VI of read data and write the sub-VI of data and realize data communication based on the USB passage;
Sub-VI is verified in described communication, be used for sending recognition command to described data collector, judge by its feedback information whether this data collector is normal with being connected of host computer, if connect normal, then can carry out the operation that reads or writes, otherwise return connection error information;
The sub-VI of described read data is used for sending the read data order to described data collector, and the read data function that calls in the described dynamic link library reads the data that this data collector is uploaded; If malunion is normal, check that then this host computer is connected with USB between this data collector, until described host computer successfully reads the data that described data collector is uploaded;
The sub-VI of write data is used for writing data command to described data collector transmission, is connecting in the normal situation, and the write data function of then calling in the described dynamic link library sends control information to described data collector.
Beneficial effect of the present invention is as follows:
Data acquisition system (DAS) provided by the invention, by being the data acquisition channel setting communications protocol corresponding from different sensors, namely can timesharing transmit the sensor output signal that belongs to same type, thereby realized the time-sharing multiplex of data acquisition channel, reduced the configuration complexity of data collector, because the notebook data acquisition system can be transmitted the multiple sensors output signal, therefore, improved the versatility of data collector again.Realize time-sharing multiplex in the time of can testing the security performance of the equipment such as hoister, water pump, air compressor machine and ventilation blower.
Description of drawings
Fig. 1 is the structural representation of a kind of general data acquisition system (DAS) that provides of the embodiment of the invention;
Fig. 2 is the circuit diagram of the usb interface module that provides of the embodiment of the invention;
Fig. 3 is the circuit diagram of the signal conditioning circuit that provides of the embodiment of the invention;
Fig. 4 is the circuit diagram of the analog to digital conversion circuit that provides of the embodiment of the invention;
Fig. 5 is the circuit diagram of the on-off value data acquisition module that provides of the embodiment of the invention.
Embodiment
Below in conjunction with accompanying drawing a concrete embodiment of the present invention is described.
As shown in Figure 1, the structural representation of a kind of general data acquisition system (DAS) that provides for the embodiment of the invention, comprise data collector and host computer, described data collector comprises: microprocessor, reusable data acquisition channel, memory extensive module and interface module, wherein, described microprocessor is connected with described reusable data acquisition channel, described memory extensive module and the interface module of being connected respectively; Described reusable data acquisition channel is defined different communications protocol, demand according to the reality test is selected corresponding communications protocol, and uses the communications protocol of selecting to have the different output signals of identical output signal type by same data acquisition channel transmission; Described data collector is by described interface module and described host computer communication.
In actual applications, reusable data acquisition channel comprises: reusable analog data collection passage, reusable on-off value data acquisition passage, reusable digital data acquisition channel; Wherein, described reusable analog data collection passage is used for transmitting the output signal of following sensor: hoister, ventilation blower, air compressor and used temperature sensor, pressure transducer, Optic Sensors in Power System, displacement transducer and the flow sensor of main drainage system test; Described reusable on-off value data acquisition passage is used for the switching value signal of transmission hoister, ventilation blower, air compressor and main drainage system thermometrically, as shown in Figure 5, is the circuit diagram of on-off value data acquisition module; The output signal of the digital transducer that described reusable digital data acquisition channel adopts when being used for transmission measurement hoister, ventilation blower, air compressor and main drainage arrangement.
When described reusable data acquisition channel was described reusable analog data collection passage, described reusable analog data collection passage was connected in series by sensor, signal conditioning circuit and analog to digital conversion circuit; When the required signal transmission line of described sensor was longer, described sensor and described signal conditioning circuit adopted wireless connections.Fig. 1 is the structural representation that includes the data acquisition system (DAS) of analog data collection passage.
Below concrete structure and the function of above-mentioned each functional module is introduced:
(1) described microprocessor can adopt embedded SmartARM2400 development system.
(2) described memory extensive module comprises: SDRAM module and/or 2M Flash module.Be used for storing the development sequence of embedded SmartARM2400 development system, and the memory buffer that is used for data acquisition.
(3) described interface module comprises: be used for usb interface module and/or TFT LCD MODULE and/or wireless transport module with the host computer communication.Wherein, the TFT LCD MODULE is used for showing the information such as each working status parameter, memory stores state and real time data of data collector; As shown in Figure 2, be the circuit diagram of usb interface module, usb interface module is used for data collector and host computer communication, observes the USB2.0 agreement, has the advantages such as message transmission rate height, support hot plug.
Wireless transport module is used for when the required signal transmission line of sensor is longer, the signal condition module in the realization data collector and the wireless connections between sensor.In the prior art, sensor and data collector are wire transmission mode, have that wiring is inconvenient, an equal shortcoming such as larger of signal cable length weight, have reduced the quality of signal transmission.And the employing wireless transmission method both can reduce the quantity that signal transmits required cable, can alleviate again the weight of equipment self integral body and the operation easier of wiring process.
(4) data acquisition channel is connected in series by sensor, signal conditioning circuit and analog to digital conversion circuit; Wherein, data acquisition channel can be expanded several according to the test needs.
Signal conditioning circuit is used for voltage or the current signal of sensor output are nursed one's health, and makes it to satisfy the requirement of data acquisition; Its circuit theory diagrams as shown in Figure 3;
Analog to digital conversion circuit is used for analog signal conversion is become digital signal, thereby just this digital signal can be passed to host computer by interface; Its circuit diagram as shown in Figure 4;
According to actual needs, data collector can dispose a plurality of data acquisition channels, and wherein each data acquisition channel is connected in series by sensor, signal conditioning circuit and analog to digital conversion circuit.Each data acquisition channel is used for the sensor output signal that transmission belongs to same type.For example: be used for the ventilation blower test wind pressure sensor, be used for the main drainage system test the exit of pump pressure transducer, be used for the gas pressure sensor of air compressor machine test, because the output signal of these three kinds of sensors is the current signal of 4-20mA, belong to the sensor with identical output signal type, therefore, when needs transmit the output signal of these three kinds of sensors, then can transmit by same data acquisition channel, only need to get final product for this data acquisition channel arranges the communications protocol corresponding with different sensors.Thereby realized that function unanimously has again the effect of the same data acquisition channel of sensor reusable of identical output signal type.
Therefore, data acquisition system (DAS) provided by the invention, be each data acquisition channel definition a plurality of communications protocol corresponding from different sensors according to given requirement of experiment by testing software, can timesharing transmit the sensor output signal that belongs to same type, thereby realized the time-sharing multiplex of interfacing equipment (that is: data acquisition channel), reduced the configuration complexity of data acquisition system (DAS), again because the notebook data acquisition system can be transmitted the multiple sensors output signal, therefore, improved the versatility of data acquisition system (DAS).For example: the data acquisition system (DAS) that the embodiment of the invention provides can be respectively applied to the security performance test to equipment such as hoister, water pump, air compressor machine and ventilation blowers.
The data collector that present embodiment provides is connected with host computer by USB interface, and host computer is by the communication process of Labview software control and data collector.
Because can not directly carrying out system call, Labview software realizes bottom operation (as: access physical address etc.), therefore, host computer is that the mechanism that is connected with external code (that is: dynamic link library mechanism) of utilizing Labview to provide realizes to the read-write of USB port data.The present invention finishes read-write process to the USB port data by call dynamic link library (DLL) in Labview, and calls DLL by using sub-VI to realize.
Concrete, after Labview software is data acquisition channel configuration communications protocol, calls communication checking, read data and write three sub-VI such as data and realize data communication based on the USB passage;
Sub-VI is verified in described communication, be used for sending recognition command to described data collector, judge by its feedback information whether this data collector is normal with being connected of host computer, if connect normal, then can carry out the operation that reads or writes, otherwise return connection error information;
The sub-VI of described read data is used for sending the read data order to described data collector, and the read data function that calls among the described DLL reads the data that this data collector is uploaded; If malunion is normal, check that then this host computer is connected with USB between this data collector, until described host computer successfully reads the data that described data collector is uploaded; Wherein, the read data function among the DLL needs the form of specify data transfer, realizes setting up the communications protocol of data transmission.
The sub-VI of write data is used for writing data command to described data collector transmission, is connecting in the normal situation, and the write data function of then calling among the described DLL sends control information to described data collector.
The above-mentioned testing software that present embodiment provides adopts modular design, can according to the required module of customer requirements flexible choice, realize the particular detection function of detection system, and the detection system range ability be adjustable.When the User Defined detection system, this testing software is the definition of data acquisition channel of detection system configuration data harvester and the definition of communications protocol automatically.
And above-mentioned testing software is reserved with the interface with other programs, and the submodule that can be used as on-line monitoring and controlling soft calls, and shares it and detects data, thereby analyze the security performance of Devices to test.
Claims (5)
1. general data acquisition system (DAS), it is characterized in that, comprise data collector and host computer, described data collector comprises: microprocessor, reusable data acquisition channel, memory extensive module and interface module, wherein, described microprocessor is connected with described reusable data acquisition channel, described memory extensive module and the interface module of being connected respectively; Described reusable data acquisition channel is defined different communications protocol, demand according to the reality test is selected corresponding communications protocol, and uses the communications protocol of selecting to have the different output signals of identical output signal type by same data acquisition channel transmission; Described data collector is by described interface module and described host computer communication; Described reusable data acquisition channel comprises: reusable analog data collection passage, reusable on-off value data acquisition passage, reusable digital data acquisition channel; Wherein, described reusable analog data collection passage is used for transmitting the output signal of following sensor: hoister, ventilation blower, air compressor and used temperature sensor, pressure transducer, Optic Sensors in Power System, displacement transducer and the flow sensor of main drainage system test; Described reusable on-off value data acquisition passage is used for the switching value signal of transmission hoister, ventilation blower, air compressor and main drainage system thermometrically; The output signal of the digital transducer that described reusable digital data acquisition channel adopts when being used for transmission measurement hoister, ventilation blower, air compressor and main drainage arrangement;
Described host computer is by Labview software and described data collector communication;
Described host computer is connected by USB port with described data collector; Described Labview software is finished read-write process to described USB port data by calling dynamic link library;
Described Labview software is finished read-write process to described USB port data by calling dynamic link library, be specially: after described Labview software is described reusable data acquisition channel configuration communications protocol, calls communication and verify sub-VI, the sub-VI of read data and write data VI and realize data communication based on the USB passage;
Sub-VI is verified in described communication, be used for sending recognition command to described data collector, judge by its feedback information whether this data collector is normal with being connected of host computer, if connect normal, then can carry out the operation that reads or writes, otherwise return connection error information;
The sub-VI of described read data is used for sending the read data order to described data collector, and the read data function that calls in the described dynamic link library reads the data that this data collector is uploaded; If malunion is normal, check that then this host computer is connected with USB between this data collector, until described host computer successfully reads the data that described data collector is uploaded;
The sub-VI of write data is used for writing data command to described data collector transmission, is connecting in the normal situation, and the write data function of then calling in the described dynamic link library sends control information to described data collector.
2. system according to claim 1 is characterized in that, described microprocessor adopts embedded developping system.
3. system according to claim 2 is characterized in that, described memory extensive module comprises: SDRAM module and/or 2M Flash module.
4. system according to claim 2 is characterized in that, described interface module comprises: be used for usb interface module and/or TFT LCD MODULE and/or wireless transport module with described host computer communication.
5. system according to claim 2, it is characterized in that, when described reusable data acquisition channel was described reusable analog data collection passage, described reusable analog data collection passage was connected in series by sensor, signal conditioning circuit and analog to digital conversion circuit; When the required signal transmission line of described sensor was longer, described sensor and described signal conditioning circuit adopted wireless connections.
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| CN102352763B (en) * | 2011-10-27 | 2014-09-24 | 北京天地玛珂电液控制系统有限公司 | Working face hydraulic support control device with wireless communication function |
| CN102722592B (en) * | 2012-05-15 | 2015-07-22 | 中国人民解放军91550部队 | Universal digital information recording device and method |
| CN104317359A (en) * | 2014-10-24 | 2015-01-28 | 波瑞电气有限公司 | Distribution network intelligent server |
| CN104898525A (en) * | 2015-06-14 | 2015-09-09 | 上海北工光翔电气科技有限公司 | Data acquisition device, data acquisition system and data acquisition method |
| CN105974848A (en) * | 2016-06-28 | 2016-09-28 | 北京电子工程总体研究所 | Universal configurable signal monitoring device |
| CN106200481A (en) * | 2016-08-03 | 2016-12-07 | 杭州电子科技大学 | A kind of pervasive data acquisition unit |
| CN106230665B (en) * | 2016-09-09 | 2023-04-07 | 深圳市艾特智能科技有限公司 | Debugging device |
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| CN107992143B (en) * | 2018-01-23 | 2024-03-01 | 江苏徐工国重实验室科技有限公司 | Multiplexing acquisition port circuit, controller, analog input acquisition method and system |
| CN108877188B (en) * | 2018-05-17 | 2020-10-16 | 济南诚博信息科技有限公司 | Environment-friendly data concurrent acquisition and multi-network publishing method and device |
| CN109753474B (en) * | 2018-12-27 | 2023-06-30 | 江苏集萃微纳自动化系统与装备技术研究所有限公司 | Adaptive filtering universal data acquisition system based on labview |
| CN109883585A (en) * | 2019-02-20 | 2019-06-14 | 莆田学院 | A kind of remote pressure measurement experiment device and its system based on virtual emulation platform |
| CN110262454B (en) * | 2019-06-25 | 2020-10-13 | 三一重能有限公司 | Test system, method and device for fan control system |
| CN112702299A (en) * | 2019-10-22 | 2021-04-23 | 博世汽车部件(苏州)有限公司 | Interface data processing apparatus, interface data processing system, interface data processing method, and computer-readable storage medium |
| CN111031127A (en) * | 2019-12-11 | 2020-04-17 | 北京利达科信环境安全技术有限公司 | Data acquisition and transmission system |
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