CN201000674Y - Meteorological element distributed monitor system - Google Patents
Meteorological element distributed monitor system Download PDFInfo
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- CN201000674Y CN201000674Y CNU2007200187244U CN200720018724U CN201000674Y CN 201000674 Y CN201000674 Y CN 201000674Y CN U2007200187244 U CNU2007200187244 U CN U2007200187244U CN 200720018724 U CN200720018724 U CN 200720018724U CN 201000674 Y CN201000674 Y CN 201000674Y
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Abstract
The utility model relates to a distributed monitoring system for the meteorological element. The utility model receives a plurality of detection signals outputted by a sensor with a communication device through the communication device connecting between a meteorological element sensor and an upper computer, the detection signals comprises an analog signal, a serial signal and a digital pulse signal, and then the detection signals is converted into a CAN bus line data and connecting communication for the upper computer is realized by a CAN bus line, thereby the distant high efficiency transmission of the meteorological element information and the arbitrary selection of the sensor type and amount. The distributed monitoring system for the meteorological element of the utility model is influenced little by the scene interference, the versatility is high, and the utility model can be used in the adverse environment to realize a distributed modular and networking monitoring for the meteorological element of the ship plane and various warehouses, the monitoring points amount and location selection is flexible, and the utility model has the advantages that the monitoring is accurate and the operation is reliable.
Description
Technical field
The utility model belongs to the maritime meteorology monitoring technical field, specifically, relates to a kind of boats and ships meteorological element collecting sensor signal and the monitoring system of communicating by letter.
Background technology
The maritime meteorology essential sensor has had bigger development as the important component part of measuring system in the maritime meteorological observation field.This class meteorological element survey sensor mainly comprises at present: the survey sensor of meteorological element parameters such as wind speed, wind transducer, temperature, humidity, atmospheric pressure, rainfall, visibility, cloud base height.At present, this class signal of sensor mainly contains following several form: serial digital signal RS232/RS485, parallel binary-coded decimal signal, digital pulse signal, analog current signal (4～20mA) and voltage signal (1～5V) etc.This class signal mainly contains following deficiency: signal transmission rate is low, transmission range closely, disturbed easily; Sensor selects to lack dirigibility in the monitoring point, number of sensors is selected to fix, in case system is definite, just is difficult to set up sensor; The maintenance and repair interchangeability is poor, fault-tolerant ability is limited etc.
At measurement and control area, control area net CAN (Controller Area Network) has become a kind of very widely field bus control system standard of international applications, it is as a kind of serial communication bus, have very high reliability and real-time, the CAN bus has obtained using widely in the control system in fields such as auto industry, space industry now, and be unique so far a kind of fieldbus that becomes international standard (ISO), be considered at present one of the most promising fieldbus.
The CAN bus is a kind of trend of inevitable development in meteorological element monitoring device or system, has development prospect and widespread demand more in naval vessels, meteorological element recording geometry such as vehicle-mounted.But,, on function, still can not satisfy the demand of new technology though present sensor can satisfy fast, accurate, measurement reliably.Particularly, the output form of this class sensor does not still satisfy the output format of CAN bus, and output signal can not satisfy the requirement of present measure field networking and monitoring point selection dirigibility.
Summary of the invention
Spot ship meteorological element detection system signal transmission rate is low in order to solve for the utility model, transmission range closely, the problem disturbed easily, a kind of meteorological element distributed monitoring system based on the CAN bus has been proposed, can satisfy remote, the high efficiency transmission requirement of meteorological element sensor output signal, be subjected to on-the-spot disturbing effect little, highly versatile.
For solving the problems of the technologies described above, the utility model is achieved by the following technical solutions:
A kind of meteorological element distributed monitoring system, comprise meteorological element sensor and upper industrial computer, between described meteorological element sensor and upper industrial computer, be connected with a communicator, described communicator is provided with the multi-channel input mouth, respectively with the corresponding connection of multichannel meteorological element sensor; Include analog to digital conversion path, parallel data in the inside of described communicator and handle path, serial data and handle path and pulse signal and handle at least a in the path, the detection signal of meteorological element sensor output is handled the data terminal that the back connects primary processor in the communicator; Described primary processor connects the total line traffic control transmission circuit of CAN, converts the digital signal that receives to the CAN bus data by the total line traffic control transmission circuit of described CAN, and then communicates through CAN bus and upper industrial computer.
In described meteorological element sensor, the sensor of output simulating signal connects input end of analog signal mouth on the described communicator, is to connect described primary processor by data bus after the digital signal by described analog to digital conversion path with analog signal conversion; The sensor of output parallel digital signal connects described parallel data by the parallel interface on the communicator and handles path, and then connects described primary processor through data bus; The sensor of output serial digital signal connects serial data by the serial ports on the communicator and handles path, and then connects described primary processor through data bus; The sensor of output digital pulse signal connects pulse signal by the pulse signal input terminal mouth on the communicator and handles path, and then is connected with the data terminal of described primary processor.
Specifically, in described analog to digital conversion path, include analog switching circuit, A/D change-over circuit, photoelectric isolating circuit and signal latch circuit; Wherein, after the simulating signal of sensor output is carried out the passage switching by analog switch, the input end that connects the A/D change-over circuit, analog signal conversion become after the digital signal connect photoelectric isolating circuit by its output terminal, and then after by signal latch circuit digital signal being latched, output in the described primary processor by data bus; Described primary processor sends control signal connects described A/D change-over circuit and analog switching circuit by control bus control end.
In described parallel data processing path, include the signal triggering circuit, the parallel digital signal of sensor output is triggered the back carry out the photoelectricity isolation processing by optocoupler, and then the input end of connection signal latch circuit, after digital signal latched, output in the described primary processor by data bus.
Handle in the path in described serial data and to include the high speed optoelectronic buffer circuit, sensor is carried out the photoelectricity isolation processing by the serial data of serial ports input after, output in the described primary processor by data bus.
Handle in the path at described pulse signal and to include signal trigger, the digital pulse signal of sensor output is triggered the back carry out the photoelectricity isolation processing, and then connect the FPDP of described primary processor by optocoupler.
The data transmission terminal of described primary processor connects the single output data port of many inputs of CAN transceiver, the data sending terminal of described CAN transceiver is handled transmit port and the receiving port that the back is connected the CAN converter by one road photoelectric isolating circuit separately with data receiver, the CAN bus port of described CAN converter connects upper industrial computer by the CAN bus, realizes the conversion between different data format and the CAN bus data.
In order to improve system performance and processing speed, described primary processor adopts the ARM9 flush bonding processor to realize, its address signal end and data-signal end respectively with corresponding connection of respective pin of program storage and data-carrier store.
Described sensor comprises the high sensor in wind speed, wind direction, temperature, humidity, air pressure, rainfall amount, visibility and cloud base, distributes to be arranged on each test point place of boats and ships, gathers corresponding meteorological element information.The housing of described communicator is provided with selector switch and LED display lamp, described selector switch connects sensor, by triggering the selection of different switch realizations to sensor type, the LED display lamp is indicated the duty of selected sensor type and described device.
Compared with prior art, advantage of the present utility model and good effect are: the utility model is by being connected communicator between meteorological element sensor and the upper industrial computer, utilize the detection signal of described communicator receiving sensor output, and then convert the CAN bus data to and utilize the CAN bus to realize the communication that is connected with upper industrial computer, thereby realized meteorological element information at a distance, any selection of high-efficiency transfer and sensor type quantity.Meteorological element distributed monitoring system of the present utility model is subjected to on-the-spot disturbing effect little, highly versatile, the meteorological element to plane, naval vessel, all kinds of warehouses that can be used in the complicated rugged surroundings realizes distributed modular, networking monitoring, monitoring point quantity, position etc. are selected flexibly, and have accurate, the reliable characteristics of monitoring.
Description of drawings
Fig. 1 is a system hardware theory of constitution block diagram of the present utility model;
Fig. 2 is one of system hardware theory of constitution figure of the present utility model;
Fig. 3 is two of system hardware theory of constitution figure of the present utility model;
Fig. 4 is collection of simulant signal of the present utility model and communication process block diagram;
Fig. 5 is binary-coded decimal of the present utility model and pulse signal acquisition and communication process block diagram;
Fig. 6 is rs 232 serial interface signal collection of the present utility model and communication process block diagram.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is done explanation in further detail.
Spot ship meteorological element detection system signal transmission rate is low in order to solve for the utility model, transmission range closely, the problem disturbed easily, a kind of meteorological element distributed monitoring system based on the CAN bus has been proposed, comprise meteorological element sensor and upper industrial computer, between described meteorological element sensor and upper industrial computer, be connected with a communicator, described communicator is provided with the multi-channel input mouth, respectively with the corresponding connection of multichannel meteorological element sensor, the detection signal of receiving sensor output; Include analog to digital conversion path, parallel data in the inside of described communicator and handle path, serial data and handle path and pulse signal and handle at least a in the path, the detection signal of meteorological element sensor output is handled the data terminal that the back connects primary processor in the communicator; Described primary processor connects the total line traffic control transmission circuit of CAN, converts the digital signal that receives to the CAN bus data by the total line traffic control transmission circuit of described CAN, and then communicates through CAN bus and upper industrial computer, has realized the remote transmission of detection signal.
Described sensor comprises the sensor of meteorological elements such as measuring wind, wind direction, temperature, humidity, air pressure, rainfall amount, visibility and cloud base height, distribution is arranged on each test point place of boats and ships, gather corresponding meteorological element information, and then by described communicator the signal that collects is carried out pre-service and conversion, and the CAN bus standard data-signal that will finally convert to is uploaded to upper industrial computer by the CAN bus and carries out Centralized Monitoring.
In described meteorological element sensor, the sensor of output simulating signal connects the input end of analog signal mouth on the communicator, is to connect described primary processor by data bus after the digital signal by described analog to digital conversion path with analog signal conversion, finishes the conversion of simulating signal to CAN bus standard signal; The sensor of output parallel digital signal connects parallel data by the parallel interface on the communicator and handles path, and then connects described primary processor through data bus, finishes the conversion of parallel digital signal to CAN bus standard signal; The sensor of output serial digital signal connects serial data by the serial ports on the communicator and handles path, and then connects described primary processor through data bus, finishes the conversion of serial digital signal to CAN bus standard signal; The sensor of output digital pulse signal connects pulse signal by the pulse signal input terminal mouth on the communicator and handles path, and then is connected with described primary processor, finishes the conversion of pulse signal to CAN bus standard signal.
In order to enlarge the scope of application of communicator in the utility model, in communicator of the present utility model, include described analog to digital conversion path, parallel data processing path, serial data processing path and pulse signal simultaneously and handle path.Certainly, also can consider, select one or more signal Processing paths wherein to be applied in the described communicator, realize the communication that is connected of meteorological element sensor and upper industrial computer according to the type and the cost of real sensor.
As described in Figure 1, in the analog to digital conversion path, include analog switching circuit, A/D change-over circuit, photoelectric isolating circuit and signal latch circuit; Wherein, after the simulating signal of sensor output is carried out the passage switching by analog switch, the input end that connects the A/D change-over circuit, analog signal conversion become after the digital signal connect photoelectric isolating circuit by its output terminal, and then after by signal latch circuit digital signal being latched, output in the described primary processor by data bus; Described primary processor sends control signal and connects the control end of described A/D change-over circuit and analog switching circuit by control bus, controls its work schedule.Described primary processor is ARM9 flush bonding processor AT91RM9200-208, its address signal end A0～A25 and data-signal end D0～D15, PC16～PC31 are respectively by address bus A[0...25] with data bus D[0...31] with respective pin corresponding be connected of program storage FLASH chip HY57V561620 with data-carrier store SDRAM chip SST39VF6401-70-4C-EK, as shown in Figure 2.
In parallel data processing path, include the signal triggering circuit, the parallel digital signal of sensor output is triggered the back carry out the photoelectricity isolation processing by optocoupler, and then the input end of connection signal latch circuit, after digital signal latched, output in the ARM9 flush bonding processor by data bus.
In serial data is handled path, include the high speed optoelectronic buffer circuit, sensor is carried out the photoelectricity isolation processing by the serial data of serial ports input after, output in the ARM9 flush bonding processor by data bus.
In pulse signal is handled path, include signal trigger, after the digital pulse signal of sensor output is triggered, carry out the photoelectricity isolation processing by optocoupler, and then connect the FPDP PA13 of ARM9 flush bonding processor.
The data transmission port PA0 of ARM9 flush bonding processor, PA1 connect many inputs single output data port SO and the single input multi-output data port SI of CAN transceiver MCP2510, the PA2 of ARM9 flush bonding processor, PA4 port connect the clock end SCK of CAN transceiver MCP2510 and sheet choosing end/CS respectively, the PA14 port to CAN transceiver MCP2510 /the IN end exports look-at-me.After the data sending terminal TXCAN of described CAN transceiver MCP2510 and data receiver RXCAN handle by one road photoelectric isolated chip ICA44, ICA45 separately, the transmit port TX and the receiving port RX that connect CAN converter TJA1050, CAN bus port CANH, the CANL of described CAN converter TJA1050 connect upper industrial computer by the CAN bus, realize the conversion between Transistor-Transistor Logic level data and the CAN bus data, as shown in Figure 2.
The hardware circuit principle figure of communicator of the present utility model is referring to Fig. 2, shown in Figure 3.Measuring temperature, humidity, during meteorological elements such as relative atmospheric pressure, resistance temperature detector, after the simulating signal of capacitance type humidity sensor and pressure transducer output is carried out the passage switching by analog switch DG508A, the input end that connects amplifier chip OPA4137, after the simulating signal of voltage/current by a small margin that collects carried out processing and amplifying, output to the input end IN of A/D conversion chip ADS7805PB, analog signal conversion become after the digital signal connect optocoupler ICA13-ICA16 by its output terminal D0-D15, after carrying out the photoelectricity isolation processing, after by signal latch 74LS244 digital signal being latched, by data bus D[0...31] output in the ARM9 processor; The control signal that the ARM9 processor sends is by control bus PB[0...29] connect the control end of A/D converter ADS7805PB and analog switch DG508A, then measured weather data is passed to upper industrial computer by the CAN bus.Wherein, the software processes flow process in the ARM9 processor as shown in Figure 4.
When the application wind speed wind direction sensor carries out signals collecting communication, the binary-coded decimal digital signal BCD0[0...6 of propeller type air velocity transducer output] trigger two four road light lotus root ICA23 of back connection and ICA24 through trigger ICA20A-INCA20F and ICA21A, after carrying out the photoelectricity isolation processing, and then the input end of connection signal latch chip IC A27, after digital signal latched, by data bus D[0...31] output in the ARM9 primary processor.After the pulse digital signal WS0 of wind transducer output triggers by trigger ICA21B, the negative electrode that connects optocoupler ICA31 light emitting diode, the anode of described light emitting diode connects direct supply VCC, the grounded emitter of optocoupler ICA31 illuminated triode, collector connects direct supply VDD by resistance R A50 on the one hand, the FPDP PA13 that connects the ARM9 processor on the other hand, the pulse signal that receives carried out the photoelectricity isolation processing after, output in the ARM9 primary processor.Wherein, the software processes flow process in the ARM9 processor as shown in Figure 5.
When sensors such as using rainfall amount, visibility, cloud base height carries out the meteorological element detection, after rs 232 serial interface signal carries out level conversion by RS232 conversion chip ICA39, after carrying out the photoelectricity isolation through high-speed light lotus root chip IC A34-ICA38 again, FPDP PA6, the PA22, PA23, the PA5 that connect the ARM9 processor, system uploads the image data of receiving by the CAN bus, realize remote monitoring.Wherein, the software processes flow process in the ARM9 processor as shown in Figure 6.
Meteorological element distributed monitoring system of the present utility model can be realized the signal of various meteorological element sensors (comprise wind speed, wind direction, temperature, humidity, atmospheric pressure, rainfall amount, visibility and cloud base are high relatively) is changed, gathered and calculates, and the result is sent to meteorological element monitoring center or system by the CAN bus with the standard of CAN2.0B.The sort signal collecting and transmitting method is subjected to on-the-spot disturbing effect little, and highly versatile can be widely used in other complicated abominable testing environment.
Certainly; above-mentioned explanation is not to be to restriction of the present utility model; the utility model also is not limited in above-mentioned giving an example, and variation, remodeling, interpolation or replacement that those skilled in the art are made in essential scope of the present utility model also should belong to protection domain of the present utility model.
Claims (10)
1. meteorological element distributed monitoring system, comprise meteorological element sensor and host computer, it is characterized in that: between described meteorological element sensor and host computer, be connected with a communicator, described communicator is provided with the multi-channel input mouth, respectively with the corresponding connection of multichannel meteorological element sensor; Include analog to digital conversion path, parallel data in the inside of described communicator and handle path, serial data and handle path and pulse signal and handle at least a in the path, the detection signal of meteorological element sensor output is handled the data terminal that the back connects primary processor in the communicator; Described primary processor connects the total line traffic control transmission circuit of CAN, converts the digital signal that receives to the CAN bus data by the total line traffic control transmission circuit of described CAN, and then communicates through CAN bus and host computer.
2. meteorological element distributed monitoring system according to claim 1, it is characterized in that: in described meteorological element sensor, the sensor of output simulating signal connects input end of analog signal mouth on the described communicator, is to connect described primary processor by data bus after the digital signal by described analog to digital conversion path with analog signal conversion; The sensor of output parallel digital signal connects described parallel data by the parallel interface on the communicator and handles path, and then connects described primary processor through data bus; The sensor of output serial digital signal connects serial data by the serial ports on the communicator and handles path, and then connects described primary processor through data bus; The sensor of output digital pulse signal connects pulse signal by the pulse signal input terminal mouth on the communicator and handles path, and then is connected with described primary processor.
3. meteorological element distributed monitoring system according to claim 2 is characterized in that: include analog switching circuit, A/D change-over circuit, photoelectric isolating circuit and signal latch circuit in described analog to digital conversion path; Wherein, after the simulating signal of sensor output is carried out the passage switching by analog switch, the input end that connects the A/D change-over circuit, analog signal conversion become after the digital signal connect photoelectric isolating circuit by its output terminal, and then after by signal latch circuit digital signal being latched, output in the described primary processor by data bus; Described primary processor sends control signal connects described A/D change-over circuit and analog switching circuit by control bus control end.
4. meteorological element distributed monitoring system according to claim 2, it is characterized in that: in described parallel data processing path, include the signal triggering circuit, the parallel digital signal of sensor output is triggered the back carry out the photoelectricity isolation processing by optocoupler, and then the input end of connection signal latch circuit, after digital signal latched, output in the described primary processor by data bus.
5. meteorological element distributed monitoring system according to claim 2, it is characterized in that: in described serial data processing path, include the high speed optoelectronic buffer circuit, after sensor carried out the photoelectricity isolation processing by the serial data of serial ports input, output in the described primary processor by data bus.
6. meteorological element distributed monitoring system according to claim 2, it is characterized in that: in described pulse signal processing path, include signal trigger, the digital pulse signal of sensor output is triggered the back carry out the photoelectricity isolation processing, and then connect the FPDP of described primary processor by optocoupler.
7. according to the described meteorological element distributed monitoring system of above-mentioned arbitrary claim, it is characterized in that: the data transmission terminal of described primary processor connects the single output data port of many inputs of CAN transceiver, the data sending terminal of described CAN transceiver is handled transmit port and the receiving port that the back is connected the CAN converter by one road photoelectric isolating circuit separately with data receiver, the CAN bus port of described CAN converter connects host computer by the CAN bus, realizes the conversion between different data format and the CAN bus data.
8. meteorological element distributed monitoring system according to claim 7 is characterized in that: described primary processor is the ARM9 flush bonding processor, its address signal end and data-signal end respectively with corresponding connection of respective pin of program storage and data-carrier store.
9. meteorological element distributed monitoring system according to claim 7, it is characterized in that: described sensor comprises the high sensor in wind speed, wind direction, temperature, humidity, air pressure, rainfall amount, visibility and cloud base, distribution is arranged on each test point place of boats and ships, gathers corresponding meteorological element information.
10. meteorological element distributed monitoring system according to claim 9, it is characterized in that: the housing of described communicator is provided with selector switch and LED display lamp, described selector switch connects sensor, by triggering the selection of different switch realizations to sensor type, the LED display lamp is indicated the duty of selected sensor type and device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200187244U CN201000674Y (en) | 2007-02-10 | 2007-02-10 | Meteorological element distributed monitor system |
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| Application Number | Priority Date | Filing Date | Title |
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| CNU2007200187244U CN201000674Y (en) | 2007-02-10 | 2007-02-10 | Meteorological element distributed monitor system |
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| CN201000674Y true CN201000674Y (en) | 2008-01-02 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100487746C (en) * | 2007-02-10 | 2009-05-13 | 山东省科学院海洋仪器仪表研究所 | Meteorological element distributed monitoring system |
| CN103399365A (en) * | 2013-08-05 | 2013-11-20 | 南京大学 | Meteorograph |
-
2007
- 2007-02-10 CN CNU2007200187244U patent/CN201000674Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100487746C (en) * | 2007-02-10 | 2009-05-13 | 山东省科学院海洋仪器仪表研究所 | Meteorological element distributed monitoring system |
| CN103399365A (en) * | 2013-08-05 | 2013-11-20 | 南京大学 | Meteorograph |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20070210 |
|
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20070210 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |