CN203310537U - GPS telemetry terminal machine - Google Patents
GPS telemetry terminal machine Download PDFInfo
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- CN203310537U CN203310537U CN2013203795834U CN201320379583U CN203310537U CN 203310537 U CN203310537 U CN 203310537U CN 2013203795834 U CN2013203795834 U CN 2013203795834U CN 201320379583 U CN201320379583 U CN 201320379583U CN 203310537 U CN203310537 U CN 203310537U
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- gps
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- central processing
- resistor
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Abstract
The utility model discloses a GPS telemetry terminal machine. The terminal machine comprises a central processor, a memory, a real-time clock circuit and a GPS module. The memory, the real-time clock circuit and the GPS module are connected to the central processor. The central processor is connected with an RS485 interface. The central processor is also connected with an A/D converter. The A/D converter is connected with a resistor R1 and a resistor R2. The other end of the resistor R1 is connected to a VDD. The other end of the resistor R2 is grounded. The resistor R1 is a temperature-sensitive resistor. The terminal machine has the advantage that the temperature-sensitive resistor is used to monitor a temperature so that cost is low.
Description
Technical field
The utility model relates to a kind of distant reading type terminating machine, relates in particular a kind of GPS remote temperature sensing formula terminating machine.
Background technology
It is that microprocessor is controlled for telemetry terminal system, and this electronic equipment interfaces is by issuing the telemetry equipment of a dcs or SCADA in physics circle, and connecting object that system is based on control message changes system.The range of application of telemetry terminal system is very extensive.When planting vegetable in greenhouse etc. need be monitored temperature, it generally adopted temperature sensor to monitor temperature, still, general most all several yuan one of temperature sensor, its cost is higher.
The utility model content
The utility model provides a kind of GPS distant reading type terminating machine, and it adopts thermo-sensitive resistor to monitor temperature, with low cost.
For solving above-mentioned technical matters, the utility model by the following technical solutions:
GPS distant reading type terminating machine, it comprises central processing unit, storer, real time clock circuit and GPS module, described storer, real time clock circuit and GPS module all are connected on central processing unit, on described central processing unit, be connected with the RS485 interface, on described central processing unit, also be connected with A/D converter, on described A/D converter, be connected with resistance R 1 and resistance R 2, the other end of described resistance R 1 is connected on VDD, the other end ground connection of resistance R 2, described resistance R 1 is thermo-sensitive resistor.
Further technical scheme is:
On described GPS module, be connected with antenna.
Described resistance R 2 is cement resistor.
Described storer is FLASH.
Described real time clock circuit comprises DS1037.
Described central processing unit is LX4F232H5QCFIGA3.
Compared with prior art, the beneficial effects of the utility model are: in the utility model, adopt the variation of thermo-sensitive resistor resistance to carry out monitor temperature, thermo-sensitive resistor with low cost, make the with low cost of whole GPS distant reading type terminating machine.
The accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is structured flowchart of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.Embodiment of the present utility model includes but not limited to the following example.
[embodiment]
GPS distant reading type terminating machine as shown in Figure 1, it comprises central processing unit, storer, real time clock circuit and GPS module, described storer, real time clock circuit and GPS module all are connected on central processing unit, on described central processing unit, be connected with the RS485 interface, on described central processing unit, also be connected with A/D converter, on described A/D converter, be connected with resistance R 1 and resistance R 2, the other end of described resistance R 1 is connected on VDD, the other end ground connection of resistance R 2, described resistance R 1 is thermo-sensitive resistor.
The resistance of thermo-sensitive resistor can change along with the variation of temperature, reaction also can change in the pressure drop of thermo-sensitive resistor thereupon, A/D converter is converted to its voltage signal digital signal and sends to central processing unit, and central processing unit detects temperature according to digital signal.The price of thermo-sensitive resistor is one mao of left and right, and a large amount of wholesale its costs are lower.Than the cost of several yuan one of temperature sensor, its price is lower, can save a large amount of costs when batch production.
On described GPS module, be connected with antenna.
Described resistance R 2 is cement resistor.The characteristics such as that cement resistor has is shatter-proof, moisture-proof, heat-resisting and good heat radiating, low price, life-span are long.
Described storer is FLASH.FLASH is flash memory.
Described real time clock circuit comprises DS1037.
Described central processing unit is LX4F232H5QCFIGA3.
The course of work of the present embodiment is as follows:
In the utility model, central processing unit is as the master controller of whole distant reading type terminating machine; Storer is for memory system data and temperature data; The distant reading type terminating machine can be connected with external unit by the RS485 interface, for this distant reading type terminating machine provides the services such as data correction.During temperature change, the thermo-sensitive resistor resistance can change along with temperature variation, the now pressure drop at thermo-sensitive resistor two ends also changes thereupon, and AD converter converts its voltage signal digital signal to and sends processor to, and processor detects temperature according to digital signal.The GPS module positions geographic position, and it can select MC-1612.Central processing unit can send to temperature value the monitoring front end by antenna, to realize the remote monitoring to temperature.
According to the above embodiments, can well complete the utility model.
Be as mentioned above embodiment of the present utility model.The utility model is not limited to above-mentioned embodiment, and anyone should learn the structural change of making under enlightenment of the present utility model, every with the utlity model has identical or close technical scheme, within all falling into protection domain of the present utility model.
Claims (6)
1.GPS distant reading type terminating machine, it is characterized in that: it comprises central processing unit, storer, real time clock circuit and GPS module, described storer, real time clock circuit and GPS module all are connected on central processing unit, on described central processing unit, be connected with the RS485 interface, on described central processing unit, also be connected with A/D converter, on described A/D converter, be connected with resistance R 1 and resistance R 2, the other end of described resistance R 1 is connected on VDD, the other end ground connection of resistance R 2, described resistance R 1 is thermo-sensitive resistor.
2. GPS distant reading type terminating machine according to claim 1, is characterized in that: be connected with antenna on described GPS module.
3. GPS distant reading type terminating machine according to claim 1 is characterized in that: described resistance R 2 is cement resistor.
4. GPS distant reading type terminating machine according to claim 1, it is characterized in that: described storer is FLASH.
5. GPS distant reading type terminating machine according to claim 1, it is characterized in that: described real time clock circuit comprises DS1037.
6. GPS distant reading type terminating machine according to claim 1, it is characterized in that: described central processing unit is LX4F232H5QCFIGA3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203795834U CN203310537U (en) | 2013-06-28 | 2013-06-28 | GPS telemetry terminal machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203795834U CN203310537U (en) | 2013-06-28 | 2013-06-28 | GPS telemetry terminal machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203310537U true CN203310537U (en) | 2013-11-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203795834U Expired - Fee Related CN203310537U (en) | 2013-06-28 | 2013-06-28 | GPS telemetry terminal machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203310537U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103335740A (en) * | 2013-06-28 | 2013-10-02 | 成都汉康信息产业有限公司 | Economic GPS telemetric terminal |
-
2013
- 2013-06-28 CN CN2013203795834U patent/CN203310537U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103335740A (en) * | 2013-06-28 | 2013-10-02 | 成都汉康信息产业有限公司 | Economic GPS telemetric terminal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Chen Jing Inventor after: Chai Jun Inventor before: Chai Jun Inventor before: Zhu Zhengxiu Inventor before: Zeng Jianlong Inventor before: Ge Jiali |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: CHAI JUN ZHU ZHENGXIU CENG JIANLONG GE JIALI TO: CHEN JING CHAI JUN |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131127 Termination date: 20170628 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |