CN202092797U - Vehicle-mounted network humiture detecting device - Google Patents
Vehicle-mounted network humiture detecting device Download PDFInfo
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- CN202092797U CN202092797U CN 201120181461 CN201120181461U CN202092797U CN 202092797 U CN202092797 U CN 202092797U CN 201120181461 CN201120181461 CN 201120181461 CN 201120181461 U CN201120181461 U CN 201120181461U CN 202092797 U CN202092797 U CN 202092797U
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- humidity sensor
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Abstract
The utility model belongs to the technical field of humiture detection and in particular relates to a vehicle-mounted network humiture detecting device. The device comprises a humiture sensor module and a collector module. The humiture sensor module comprises several pairs of temperature sensors and humidity sensors, and the collector module comprises a driving interface, a single chip microcomputer, a ferroelectric memory, a watchdog circuit, a keyboard, a display interface and a serial communication interface. The output ends of each pair of the temperature sensor and the humidity sensor are connected with the input end of the driving interface through a cable, the output end of the driving interface is connected with the single chip microcomputer, and the ferroelectric memory, the watchdog circuit, the keyboard, the display interface and the serial communication interface are respectively connected with the single chip microcomputer. The vehicle-mounted network humiture detecting device is low in cost, reliable, accurate in measurement data and strong in expansibility and applicability.
Description
Technical field
The utility model belongs to humiture detection technique field, is specially a kind of vehicular network-type humiture pick-up unit.
Background technology
According to playing an important role in the multi-measuring point temperature control system, whether its measurement is determining directly that accurately can temperature control system run well to temperature-humidity signal as control.Usually select the Temperature Humidity Sensor of outsourcing in the past for use, and developed the measurement that Acquisition Circuit is finished temperature-humidity signal voluntarily, but in actual application, had following problem:
(1) cost is higher: the Temperature Humidity Sensor market purchasing valency that uses at present is about 7000 yuan/on the one hand, and needed quantity is more, is unfavorable for cost control; Be required to be each sensor supporting respective detection cable respectively on the other hand, number of cables is more, also makes cost higher;
(2) system extension is poor: the signal of the Temperature Humidity Sensor transmission of outsourcing is 4～20mA analog signals, every design relevant detection circuit that sensor is required to be, in a single day system design is finished, and can't increase measuring point, extendability is poor, is not easy to the upgrading and the expansion of system;
(3) system applies is poor: because the uniqueness of signal transmission is required to be the supporting respectively respective detection cable of each sensor, in limited space, number of cables is more, and the in disorder complexity of placement-and-routing has brought great difficulty for the design of system.
Therefore, be necessary to develop a kind of cheap, use reliable, extendability is strong and the layout cabling is easy to the humiture pick-up unit.
Summary of the invention
The purpose of this utility model be to provide a kind of cheap, use reliable, extensibility is strong and the layout cabling is easy to vehicular network-type humiture pick-up unit, to overcome the problems referred to above that prior art exists.
In order to achieve the above object, the technical scheme that the utility model adopted is: a kind of vehicular network-type humiture pick-up unit, and this device comprises Temperature Humidity Sensor module and collector module; Wherein the Temperature Humidity Sensor module is made up of temperature sensor and humidity sensor some, and the collector module comprises driving interface, single-chip microcomputer, ferroelectric memory, watchdog circuit, keyboard and display interface and serial communication interface; Each output terminal to temperature sensor and humidity sensor is connected with the input end of driving interface by a cable, the output terminal of driving interface is connected with single-chip microcomputer, and ferroelectric memory, watchdog circuit, keyboard and display interface are connected with single-chip microcomputer respectively with serial communication interface.
Described each to temperature sensor and humidity sensor with the temperature-humidity signal that collects by a cable transmission to driving interface, described driving interface is exported to single-chip microcomputer after converting the temperature-humidity signal that receives to be complementary with single-chip microcomputer signal.
Described single-chip microcomputer is handled received temperature-humidity signal data as required, handles the data of gained and can also can export by serial communication interface by the display interface demonstration that circulates.
Described ferroelectric memory can be stored the configuration information of temperature sensor and humidity sensor each.
Described watchdog circuit can reset to single-chip microcomputer under fortuitous event appears in system, restarts the collector module.
Described keyboard and display interface adopt 4 buttons and 8 charactrons to finish man-machine interaction, are used for temperature sensor and humidity sensor information configuration and the demonstration of assigned address humiture.
Described serial communication interface is the RS-422 serial communication mode.
The model of described temperature sensor is the DS18B20 of Dallas company; The model of humidity sensor is the HIH-4000 of Honeywell company; Driving interface adopts CMOS to open the drain line driver, and model is 74ACT245; The single-chip microcomputer model is XC164CS; The watchdog circuit model is MAX706.
The obtained beneficial effect of the utility model is: this vehicular network-type humiture pick-up unit operational excellence, measured temperature-humidity signal data are accurately, reliably.
(1) on the one hand the cost of the selected Temperature Humidity Sensor of this device be about 600 yuan/only; Because the change of metering system makes corresponding measurement cable reduce, testing circuit is succinct, has realized cost control on the other hand;
(2) this device can be gathered the nearly temperature-humidity signal of 64 measuring points simultaneously on the long unit cable of 600m, and the layout of measuring point is unrestricted, and can arbitrarily increase or reduce the quantity of sensor, and extensibility is strong;
(3) because the change of metering system makes corresponding measurement cable reduce, in limited space, make that testing circuit is succinct, the layout cabling is easy, simplified the design difficulty of system.
Description of drawings
Fig. 1 is a vehicular network-type humiture pick-up unit structural drawing described in the utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.
As shown in Figure 1, vehicular network-type humiture pick-up unit described in the utility model comprises Temperature Humidity Sensor module and collector module, wherein the Temperature Humidity Sensor module is made up of temperature sensor and humidity sensor some, and the collector module comprises driving interface, single-chip microcomputer, ferroelectric memory, watchdog circuit, keyboard and display interface and serial communication interface; Each output terminal to temperature sensor and humidity sensor is connected with the input end of driving interface by a cable, the output terminal of driving interface is connected with single-chip microcomputer, and ferroelectric memory, watchdog circuit, keyboard and display interface are connected with single-chip microcomputer respectively with serial communication interface.
Each passes through a cable transmission to driving interface to temperature sensor and humidity sensor with the temperature-humidity signal that collects, driving interface is exported to single-chip microcomputer after converting the temperature-humidity signal that receives to be complementary with single-chip microcomputer signal, single-chip microcomputer is handled received humiture data as required, the data of handling gained can show by display interface, also can it be exported, finish control temperature control system by serial communication interface; Ferroelectric memory can be stored the configuration information of temperature sensor and humidity sensor each; Watchdog circuit can reset to single-chip microcomputer under fortuitous event appears in system, restarts the collector module, makes the work of whole device uninterrupted, and is significant for the antijamming capability that improves system; Keyboard and display interface adopt 4 buttons and 8 charactrons to finish man-machine interaction as " people-machine " interface, are mainly used in subsidiary functions such as the information configuration of temperature sensor and humidity sensor and the demonstrations of assigned address humiture.
Wherein, the model of temperature sensor is the DS18B20 of Dallas company; The model of humidity sensor is the HIH-4000 of Honeywell company; Driving interface adopts CMOS to open the drain line driver, and model is 74ACT245; The single-chip microcomputer model is XC164CS; The watchdog circuit model is MAX706; Serial communication interface adopts the RS-422 serial communication mode.
Claims (8)
1. vehicular network-type humiture pick-up unit, it is characterized in that: this device comprises Temperature Humidity Sensor module and collector module; Wherein the Temperature Humidity Sensor module is made up of temperature sensor and humidity sensor some, and the collector module comprises driving interface, single-chip microcomputer, ferroelectric memory, watchdog circuit, keyboard and display interface and serial communication interface; Each output terminal to temperature sensor and humidity sensor is connected with the input end of driving interface by a cable, the output terminal of driving interface is connected with single-chip microcomputer, and ferroelectric memory, watchdog circuit, keyboard and display interface are connected with single-chip microcomputer respectively with serial communication interface.
2. vehicular network-type humiture pick-up unit according to claim 1, it is characterized in that: described each to temperature sensor and humidity sensor with the temperature-humidity signal that collects by a cable transmission to driving interface, described driving interface is exported to single-chip microcomputer after converting the temperature-humidity signal that receives to be complementary with single-chip microcomputer signal.
3. vehicular network-type humiture pick-up unit according to claim 1, it is characterized in that: described single-chip microcomputer is handled received temperature-humidity signal data as required, handling the data of gained can also can export by serial communication interface by the display interface demonstration that circulates.
4. vehicular network-type humiture pick-up unit according to claim 1, it is characterized in that: described ferroelectric memory can be stored the configuration information of temperature sensor and humidity sensor each.
5. vehicular network-type humiture pick-up unit according to claim 1 is characterized in that: described watchdog circuit can reset to single-chip microcomputer under fortuitous event appears in system, restarts the collector module.
6. vehicular network-type humiture pick-up unit according to claim 1, it is characterized in that: described keyboard and display interface adopt 4 buttons and 8 charactrons to finish man-machine interaction, are used for temperature sensor and humidity sensor information configuration and the demonstration of assigned address humiture.
7. vehicular network-type humiture pick-up unit according to claim 1, it is characterized in that: described serial communication interface is the RS-422 serial communication mode.
8. vehicular network-type humiture pick-up unit according to claim 1, it is characterized in that: the model of described temperature sensor is the DS18B20 of Dallas company; The model of humidity sensor is the HIH-4000 of Honeywell company; Driving interface adopts CMOS to open the drain line driver, and model is 74ACT245; The single-chip microcomputer model is XC164CS; The watchdog circuit model is MAX706.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120181461 CN202092797U (en) | 2011-05-31 | 2011-05-31 | Vehicle-mounted network humiture detecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120181461 CN202092797U (en) | 2011-05-31 | 2011-05-31 | Vehicle-mounted network humiture detecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202092797U true CN202092797U (en) | 2011-12-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120181461 Expired - Lifetime CN202092797U (en) | 2011-05-31 | 2011-05-31 | Vehicle-mounted network humiture detecting device |
Country Status (1)
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| CN (1) | CN202092797U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103542951A (en) * | 2012-07-17 | 2014-01-29 | 长春工业大学 | Mining temperature sensor |
| CN104180485A (en) * | 2014-08-01 | 2014-12-03 | 镇江翼天计算机科技有限公司 | Humidity control device with resetting and lighting functions |
-
2011
- 2011-05-31 CN CN 201120181461 patent/CN202092797U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103542951A (en) * | 2012-07-17 | 2014-01-29 | 长春工业大学 | Mining temperature sensor |
| CN104180485A (en) * | 2014-08-01 | 2014-12-03 | 镇江翼天计算机科技有限公司 | Humidity control device with resetting and lighting functions |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Changzheng Tianmin High Science and Technology Co., Ltd., Beijing Assignor: Beijing aerospace Emission Technology Institute Contract record no.: 2014990000137 Denomination of utility model: Vehicle-mounted network humiture detecting device Granted publication date: 20111228 License type: Exclusive License Record date: 20140318 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111228 |