CN202083953U - Portable network distributed on-site testing apparatus - Google Patents
Portable network distributed on-site testing apparatus Download PDFInfo
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- CN202083953U CN202083953U CN2011200089638U CN201120008963U CN202083953U CN 202083953 U CN202083953 U CN 202083953U CN 2011200089638 U CN2011200089638 U CN 2011200089638U CN 201120008963 U CN201120008963 U CN 201120008963U CN 202083953 U CN202083953 U CN 202083953U
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- portable network
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Abstract
The utility model relates to a portable network distributed on-site testing apparatus, comprising a signal conditioning module, an embedded digit signal processing system, an intelligent power supply management module, characterized in that the signal conditioning module is arranged at left upper side, and connected with the embedded digit signal processing system, the intelligent power supply management module is arranged at left lower side, an automobile bus arranged at middle is used for communication thereby increasing communication reliability under complicated electromagnetic environment, and a network and a power supply controller arranged at right side supply power for each module. The portable network distributed on-site testing apparatus is provided with performance of multi-channel, real-time, high precision, high stability and strong interference resistance.
Description
Technical field:
The utility model relates to the distributed on-site testing device of a kind of portable network.
Background technology:
The network distribution type on-site testing device, be that flexible cutting to product is to adapt to different testing requirements, can realize distributed Site Test Analysis, remote monitoring, fault diagnosis etc., can be used for the occasion such as airborne, carrier-borne, vehicle-mounted test, condition monitoring for rotating machinery of national defence, auto industry, civil engineering work.At present, there is following shortcoming in the homemade signal testing analytic product of home market: volume is big, portable poor, and purposes is single, poor anti jamming capability, problem such as reliability is low, and real-time is not enough.
The utility model content:
It is a kind of that the purpose of this utility model will provide exactlyPortable
The network distribution type on-site testing device, it can overcome the existing problem of present domestic signal testing analytic product.The purpose of this utility model is achieved in that a kind ofPortable
The network distribution type on-site testing device,Comprise the signal condition module, the embedded digital signal processing system, the intelligent electric power management module is formed, it is characterized in that: be provided with on the upper left side that the signal condition module connects with the embedded digital signal processing system, the lower left is provided with the intelligent electric power management module, automobile bus communication by the centre setting, improve the communication reliability under the complex electromagnetic environment, network and power-supply controller of electric that the right is provided with carry out the power supply supply to each module; Described signal condition module is provided with accurate analog signal conditioner circuit,
Adopt programmable amplifier, the hardware of modular design, multilayer circuit board improves the mature modules integrated level, selects up-to-date low-power consumption analog filter for use, adopts bridge to be press-fitted and puts, surface patch technology mounting process, highly intelligent one control;Described embedded computer system is provided with DSP numeral anti-aliasing filtering, control bus, data bus and steering logic, can carry out the hyperchannel expansion, the sampling of running simultaneously of 2048 passages be can realize at most, highly integrated, high precision, high stability, high reliability realized; Described intelligent electric power management module 3 is provided with on-the-spot automated intelligent resistance measurement unit, and on-the-spot real-time online is finished conductor resistance automatically and detected and revise.
The utility model modular design, highly integrated, easy to carry, have independently DSP system for real-time signal processing of every passage, high precision, high stability.With the integrated application of multinomial advanced person's simulation, numeral and embedded computer technology, the high performance index of Dynamic Signal test macro, highly portable, high reliability and the real-time analysis of measurement data, the power of real-time storage have been realized.The automatic measuring unit of inner conductors resistance, on-the-spot real-time online is finished conductor resistance automatically and is detected and revise.The unit flexible configuration can concentrate rack to install and use, and also can connect by the cable expansion, is applicable to that field condition uses.
Description of drawings:
Fig. 1 is the utility model structural representation;
⒈ signal condition module, ⒉ embedded digital signal processing system, ⒊ intelligent electric power management module, 4. automobile bus, 5. network and power-supply controller of electric.
Embodiment
The utility model is described in further detail for the knot accompanying drawing below;
A kind of portable
The network distribution type on-site testing device,Comprise signal condition module 1, embedded digital signal processing system 2, intelligent electric power management module 3 is formed, it is characterized in that: be provided with on the upper left side that signal condition module 1 connects with embedded digital signal processing system 2, the lower left is provided with intelligent electric power management module 3, automobile bus 4 communications by the centre setting, improve the communication reliability under the complex electromagnetic environment, network and power-supply controller of electric 5 that the right is provided with carry out the power supply supply to each module; Described signal condition module 1 is provided with accurate analog signal conditioner circuit,
Adopt programmable amplifier, the hardware of modular design, multilayer circuit board improves the mature modules integrated level, selects up-to-date low-power consumption analog filter for use, adopts bridge to be press-fitted and puts, surface patch technology mounting process, highly intelligent one control;Described embedded digital signal processing system 2 is provided with DSP numeral anti-aliasing filtering, control bus, data bus and steering logic, can carry out the hyperchannel expansion, the sampling of running simultaneously of 2048 passages be can realize at most, highly integrated, high precision, high stability, high reliability realized; Described intelligent electric power management module 3 is provided with on-the-spot automated intelligent resistance measurement unit, and on-the-spot real-time online is finished conductor resistance automatically and detected and revise.
During concrete enforcement, example DH3820 measures conductor resistance and principle is judged in self check
1. measurement conductor resistance
1) full scale value is selected:
Demarcate electric current 1mA according to full scale value=2* arm resistance *, select immediate wide range; DH5929 can select: 10V, 1V, 0.1V, 30mV, 3mV; DH3820 can select: 5V, 0.5V, 50mV.
The bridge circuit mode changes into: GND, and the AD value D0 under the sampling current state is the value at zero point---bridge pressure, demarcation state, measuring resistance state keep last next state;
3) measure current bridge resistance, state: measure bridge pressure condition, bridge circuit input mode state, demarcation state maintenance measurement conductor resistance state before;
4) software parameter sets post-sampling, gets AD value D1; When D1 is open circuit more than or equal to 95% of full scale; When D1 is short circuit smaller or equal to 5% of full scale
5) calculate conductor resistance:
Full-bridge conductor resistance formula:
Half-bridge conductor resistance formula:
1/4 bridge conductor resistance formula:
Wherein: Rd=2K resistance is the fixing value in instrument the inside;
Rg is the arm resistance of user's input;
R0 is 1/4 bridge instrument internal compensating resistance, i.e. 120R or 350R;
6) the strain computing formula according to conventional instrument calculates corresponding strain value.
Single measuring point self check process
2.1 under the sampling current state strain value A0;
2.2 the software setting calibrating parameters, the strain value A1 of sampling;
2.3 Theoretical Calculation calibration value Ai=(1-
) * 1000000
2.4 basis for estimation: △ A=A1-A0; In 0.9*Ai≤△ A≤1.1*Ai scope, show the self check value of black font, the self check value that goes beyond the scope and then show red font.
Claims (4)
1. distributed on-site testing device of portable network, comprise signal condition module (1), embedded digital signal processing system (2), intelligent electric power management module (3) is formed, it is characterized in that: be provided with on the upper left side that signal condition module (1) connects with embedded digital signal processing system (2), the lower left is provided with intelligent electric power management module (3), automobile bus (4) communication by the centre setting, improve the communication reliability under the complex electromagnetic environment, network and power-supply controller of electric (5) that the right is provided with carry out the power supply supply to each module.
2. the distributed on-site testing device of a kind of portable network according to claim 1, it is characterized in that: described signal condition module (1) is provided with accurate analog signal conditioner circuit, adopt programmable amplifier, the hardware of modular design, multilayer circuit board, adopt bridge to be press-fitted and put surface patch technology mounting process.
3. the distributed on-site testing device of a kind of portable network according to claim 1, it is characterized in that: described embedded digital signal processing system (2) is provided with DSP numeral anti-aliasing filtering, control bus, data bus and steering logic, hyperchannel expansion can be carried out, the sampling of running simultaneously of 2048 passages can be realized at most.
4. the distributed on-site testing device of a kind of portable network according to claim 1, it is characterized in that: described intelligent electric power management module (3) is provided with on-the-spot automated intelligent resistance measurement unit, and on-the-spot real-time online is finished conductor resistance automatically and detected and revise.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200089638U CN202083953U (en) | 2011-01-13 | 2011-01-13 | Portable network distributed on-site testing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200089638U CN202083953U (en) | 2011-01-13 | 2011-01-13 | Portable network distributed on-site testing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202083953U true CN202083953U (en) | 2011-12-21 |
Family
ID=45344576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200089638U Expired - Fee Related CN202083953U (en) | 2011-01-13 | 2011-01-13 | Portable network distributed on-site testing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202083953U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102590621A (en) * | 2011-01-13 | 2012-07-18 | 江苏东华测试技术股份有限公司 | Portable networked distributed field test system |
-
2011
- 2011-01-13 CN CN2011200089638U patent/CN202083953U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102590621A (en) * | 2011-01-13 | 2012-07-18 | 江苏东华测试技术股份有限公司 | Portable networked distributed field test system |
| CN102590621B (en) * | 2011-01-13 | 2015-05-27 | 江苏东华测试技术股份有限公司 | Portable networked distributed field test device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111221 Termination date: 20180113 |