CN202501892U - Pulse collector with double-timing-counting function - Google Patents
Pulse collector with double-timing-counting function Download PDFInfo
- Publication number
- CN202501892U CN202501892U CN2012201270381U CN201220127038U CN202501892U CN 202501892 U CN202501892 U CN 202501892U CN 2012201270381 U CN2012201270381 U CN 2012201270381U CN 201220127038 U CN201220127038 U CN 201220127038U CN 202501892 U CN202501892 U CN 202501892U
- Authority
- CN
- China
- Prior art keywords
- circuit
- processor
- signal processing
- pulse
- timing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The utility model relates to a pulse collector with a double-timing-counting function. The pulse collector comprises a signal processing module, a power supply circuit, a communication circuit, a crystal oscillator and a processor, wherein the output end of the signal processing module is connected with the processor, the output end of the processor is connected with the communication circuit, the crystal oscillator is connected with the processor, and the power supply circuit is connected with all circuits of the pulse collector. The pulse collector is characterized in that the signal processing module comprises two signal processing circuits, each signal processing circuit sequentially comprises a filter circuit, a shaping circuit and a high-speed optical-coupling isolating circuit, and the processor is provided with two pairs of timing and counting devices which respectively correspond to the two signal processing circuits and have capture functions. With the adoption of the technical scheme, the pulse collector not only has a single-timing-counting function, but also has the double-timing-counting function; and the double-timing-counting function is based on a pulse stuffing technology, and pulse signals of two channels are subjected to correlation operation, so that the number of pulses of the pulse signals of two channels in the same period of time can be calculated accurately, and the precision can reach 0.1 ms.
Description
Technical field
The utility model belongs to a kind of pulse collection device, specifically belongs to a kind of pulse collection device with two timing tally functions.
Background technology
Existing pulse collection device does not possess the function of two timing countings, and its acquisition precision is lower, also has shortcoming simultaneously: 1, signal disturbs; 2, the frequency range that adapts to is narrow; 3, need to use a plurality of modules; 4, poor reliability.Can't be applied in the occasions such as accurate measurement, calibration and demarcation of flow.
Summary of the invention
The utility model technical matters to be solved is: a kind of single timing tally function that not only has is provided, also has two timing tally functions, the ability erasure signal disturbs, adapts to the pulse collection device of wide frequency range simultaneously.
For solving the problems of the technologies described above, the utility model adopts following technical scheme:
A kind of pulse collection device with two timing tally functions; Comprise signal processing module, power circuit, communicating circuit, crystal oscillator and processor; The output terminal connection processing device of said signal processing module, the output terminal of processor is connected with communicating circuit, and crystal oscillator is connected with processor; Each circuit of power circuit and this device is connected; It is characterized in that: said signal processing module comprises two bars treatment circuits, and said signal processing circuit comprises filtering circuit, shaping circuit and high-speed light lotus root buffer circuit successively, said processor have two pairs respectively with the corresponding timer conter of two bars treatment circuits with capturing function.
Said two bars treatment circuits can adopt the pulse signal treatment circuit of three-wire system and the pulse signal treatment circuit of switching regulator respectively.
The kernel frequency of operation of said processor is higher than 12MHz.
Said crystal oscillator adopts the temperature compensation crystal oscillator, and its precision will be higher than 5ppm.
After adopting above technical scheme: not only have single timing tally function, also have two timing tally functions, this function is inserted technology based on pulse; Two channel pulse signals are carried out related operation, can accurately calculate the umber of pulse of the interior two channel pulse signals of section at one time, its precision can reach 0.1ms; Be better than the requirement of flow metering calibrating; Be applicable to two channel pulse signal in real time collections, simultaneously, can detect 0.0001Hz～100KHz frequency range input signal.
Description of drawings
Fig. 1 is the principle schematic of the utility model;
Fig. 2 is the circuit diagram of the utility model signal processing module;
Fig. 3 connects the structural representation of crystal oscillator for the utility model processor;
Fig. 4 is the utility model circuit construction of electric power synoptic diagram;
Fig. 5 is the utility model communicating circuit structural representation.
Embodiment
Referring to Fig. 1; A kind of pulse collection device with two timing tally functions comprises signal processing module, power circuit, communicating circuit, crystal oscillator and processor, the output terminal connection processing device of signal processing module; The output terminal of processor is connected with communicating circuit; Crystal oscillator is connected with processor, and each circuit of power circuit and this device is connected, and signal processing module comprises two bars treatment circuits; Signal processing circuit comprises filtering circuit 1, shaping circuit 2 and high-speed light lotus root buffer circuit 3 successively, processor have two pairs respectively with the corresponding timer conter of two bars treatment circuits with capturing function.
Referring to Fig. 2; Two bars treatment circuits can adopt the pulse signal treatment circuit 4 of three-wire system and the pulse signal treatment circuit 5 of switching regulator respectively, the pulse signal treatment circuit of switching regulator relatively with the pulse signal treatment circuit of three-wire system more than the output terminal an extra shaping circuit.
Requirement for the concrete components and parts of the utility model:
1) the kernel frequency of operation of processor is higher than 12MHz, preferably is higher than 24MHz, and concrete inner structure is referring to Fig. 3;
2) crystal oscillator adopts the temperature compensation crystal oscillator, and its precision will be higher than 5ppm, and its original frequency precision reaches ± 1ppm, and crystal oscillator pin output interface terminal makes things convenient for the regular detection of crystal oscillator, prevents the precise decreasing that causes because crystal oscillator is aging;
3) referring to Fig. 4, power circuit 5 has two input ports, and wherein voltage input insulating power supply module is decided in one tunnel employing, exports to the internal system power supply, and non-voltage stabilizing+5V and voltage stabilizing+3.3V voltage is provided; 9～24V voltage can be imported in another road, gives externally fed, provide non-voltage stabilizing+5V ,+voltage of 8V and 9～24V of changing according to input;
4) referring to Fig. 5, communicating circuit is a utilization RS485 communication mode, adopts to meet MODBUS protocol format transmission data, and it has the TVS protection of pipe simultaneously, avoids the bus high pressure that (thunderbolt, surge) produces when receiving external interference and damages.
The utility model is for the improvements of prior art:
Not only has single timing tally function; Also have two timing tally functions, this function is inserted technology based on pulse, and two channel pulse signals are carried out related operation; Can accurately calculate the umber of pulse of the interior two channel pulse signals of section at one time; Its precision can reach 0.1ms, is better than the requirement of flow metering calibrating, is applicable to two channel pulse signal in real time collections.Simultaneously, can detect 0.0001Hz～100KHz frequency range and import and provide the data transmission that meets the MODBUS agreement.
Claims (4)
1. pulse collection device with two timing tally functions; Comprise signal processing module, power circuit, communicating circuit, crystal oscillator and processor; The output terminal connection processing device of said signal processing module, the output terminal of processor is connected with communicating circuit, and crystal oscillator is connected with processor; Each circuit of power circuit and this device is connected; It is characterized in that: said signal processing module comprises two bars treatment circuits, and said signal processing circuit comprises filtering circuit (1), shaping circuit (2) and high-speed light lotus root buffer circuit (3) successively, said processor have two pairs respectively with the corresponding timer conter of two bars treatment circuits with capturing function.
2. a kind of pulse collection device with two timing tally functions according to claim 1 is characterized in that: said two bars treatment circuits can adopt the pulse signal treatment circuit (4) of three-wire system and the pulse signal treatment circuit (5) of switching regulator respectively.
3. a kind of pulse collection device with two timing tally functions according to claim 1 and 2, it is characterized in that: the kernel frequency of operation of said processor is higher than 12MHz.
4. a kind of pulse collection device with two timing tally functions according to claim 1 and 2 is characterized in that: said crystal oscillator adopts the temperature compensation crystal oscillator, and its precision will be higher than 5ppm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201270381U CN202501892U (en) | 2012-03-29 | 2012-03-29 | Pulse collector with double-timing-counting function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201270381U CN202501892U (en) | 2012-03-29 | 2012-03-29 | Pulse collector with double-timing-counting function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202501892U true CN202501892U (en) | 2012-10-24 |
Family
ID=47038505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201270381U Expired - Lifetime CN202501892U (en) | 2012-03-29 | 2012-03-29 | Pulse collector with double-timing-counting function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202501892U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104198017A (en) * | 2014-07-30 | 2014-12-10 | 成都千嘉科技有限公司 | Pulse output signal processing system of flow metering device |
-
2012
- 2012-03-29 CN CN2012201270381U patent/CN202501892U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104198017A (en) * | 2014-07-30 | 2014-12-10 | 成都千嘉科技有限公司 | Pulse output signal processing system of flow metering device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10547437B2 (en) | Synchronization signal transmitting device, method thereof and power electronic apparatus having the device | |
| CN102298345B (en) | Communication method of M-BUS (meter-BUS) | |
| CN102331979A (en) | Dynamic clock frequency calibration method applied to universal serial bus (USB) equipment | |
| CN201181323Y (en) | Logic analyzer | |
| CN202166856U (en) | Slave receiving circuit of M-BUS | |
| CN102854374B (en) | Device and method for detecting direct-current voltage of power unit element | |
| CN203773266U (en) | Digital measurement and control device | |
| CN108490251A (en) | A kind of digital electric energy metering device meeting 3/2 wiring | |
| CN202501892U (en) | Pulse collector with double-timing-counting function | |
| CN204180093U (en) | A kind of PPS system balance device based on FPGA | |
| CN104142651A (en) | Switch gate signal measuring circuit | |
| CN202362445U (en) | Electronic type mutual inductor on-site check meter | |
| CN203433041U (en) | An electric energy meter provided with a communication function | |
| CN102508423A (en) | IRIG-B (Inter-Range Instrumentation Group-B) time-setting method adopting enhanced capture module | |
| CN104348468A (en) | Pulse width self-adaptive single-bus receiver | |
| CN205121234U (en) | Real -time synchronization data acquisition device | |
| CN203368439U (en) | Pulse-width self-adaptive single bus receiver | |
| CN203310898U (en) | Optical communication data acquisition module | |
| CN105785851A (en) | SENT protocol frame data parsing converter data sampling parsing system | |
| CN203732908U (en) | Universal monitor module for agriculture | |
| CN203688663U (en) | Power collection system | |
| CN207317875U (en) | Gps timing multichannel ultrasonic wave channel flow gauge | |
| CN202455336U (en) | Optical serial port self-adaptive decoding circuit | |
| CN111061145A (en) | Time delay settable time interval measuring device and measuring method based on FPGA | |
| CN103686441A (en) | Multi-format data transmission system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121024 |