CN201522335U - Automatic low power-consumption wireless digital temperature monitoring system - Google Patents
Automatic low power-consumption wireless digital temperature monitoring system Download PDFInfo
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- CN201522335U CN201522335U CN2009201105378U CN200920110537U CN201522335U CN 201522335 U CN201522335 U CN 201522335U CN 2009201105378 U CN2009201105378 U CN 2009201105378U CN 200920110537 U CN200920110537 U CN 200920110537U CN 201522335 U CN201522335 U CN 201522335U
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Abstract
The utility model relates to an automatic lower power-consumption wireless digital temperature monitoring system which mainly comprises a wireless digital temperature measuring terminal, a wireless data concentrator and a wireless temperature monitoring device and can automatically carry out real-time monitoring of indoor environmental temperature. The automatic lower power-consumption wireless digital temperature monitoring system adopts the frequency of 470-510 MHz, which is a frequency band of a metering instrument, so that the system has high interference resisting capability, fewer blind areas and high reliability. The automatic lower power-consumption wireless digital temperature monitoring system has small volume, low power consumption, reliable performance, accurate temperature measurement and convenient use.
Description
Affiliated technical field
The utility model relates to automatic monitoring technical, particularly a kind of low-consumption wireless digital temperature automatic monitoring system.
Background technology
Recent years, China's imbalance between power supply and demand is very outstanding, especially meets during the kurtosis summer, and the major reason that causes electric power breach in summer is to use air-conditioning to form the power load peak in a large number, and in the peak of loading winter, air-conditioning has also been played the part of the key player.Along with the social and economic activities level improves, this contradiction also becomes increasingly conspicuous.Rationally the control air-conditioner temperature can be cut down air-conditioning peak value electric load greatly, can save a large amount of power construction investments when alleviating the power tense situation, and in addition, it can also reduce the pollution to atmospheric environment of sulphuric dioxide, carbon dioxide.
Therefore, the General Office of the State Council sends " notice of carrying out public building air-conditioner temperature control criterion about strictness " regulation, and strict execution public building air-conditioner temperature control criterion shortly before peak of power consumption is arrived is earnestly implemented the air conditioner energy saving control measures.Yet the problem that all exists " the limit temperature makes " to be difficult to implement in a lot of cities, therefore, it is conscious that " limit temperature " can not only depend on, must there be the measure of some monitorings and constraint really to implement, and it is too low to hold the mode efficient that thermometer monitors by the staff, realizes real-time monitoring to entire city room conditioning temperature so be starved of a kind of high efficiency method.
In the automatic monitoring scheme of existing wireless temperature, because the wireless data of the temperature sensor that is mostly simulating signal selected for use and 2.4GHz frequency range transmits, so can occur in actual applications that temperature survey is inaccurate, the wireless signal blind area is more and problem such as the temperature acquisition system power consumption is bigger.
Summary of the invention
Problems such as the utility model proposes a kind of low-consumption wireless digital temperature automatic monitoring system, it is not high in order to solve temperature measurement accuracy that its purpose is exactly, and the many and temperature collect module power consumption in wireless signal blind area is big, realization is to the automatic monitoring of variation of ambient temperature.
Technical solution of the present utility model
Native system mainly comprises wireless digital thermometric terminal, wireless data concentrator and wireless temperature monitoring equipment.The critical piece of described wireless digital thermometric terminal includes wireless data transmission module, antenna, digital temperature sensor, single-chip microcomputer, power management module, lithium battery at least.Wherein wireless data transmission module links to each other with antenna and wireless data concentrator is carried out radio communication; Single-chip microcomputer links to each other with digital temperature sensor, gathers and send temperature data; Lithium battery is given wireless data transmission module, single-chip microcomputer and digital temperature sensor power supply as the general supply of whole thermometric terminal; Power-supply management system is to be used for overcharging or putting into excessively to go and protect lithium battery.Each wireless digital thermometric terminal of the utility model is installed in the position of each point for measuring temperature in the system.
The critical piece of described wireless data concentrator includes 2 wireless data transmission modules, 2 antennas, digital temperature sensor, single-chip microcomputer, power management module, external power source at least.Wherein wireless data transmission module links to each other with antenna, carries out radio communication with wireless digital thermometric terminal, wireless temperature monitoring equipment respectively; Single-chip microcomputer links to each other with digital temperature sensor, the corresponding operation of collecting temperature data and processing radio communication; External power provides safe and reliable working power for each parts.
Described wireless temperature monitoring part of appliance includes monitoring computer, wireless data transmission module, antenna, the external power of being with serial ports at least.Wherein wireless data transmission module links to each other with antenna, is connected with monitoring computer by serial ports again, is responsible for carrying out data communication with wireless data concentrator; External power provides safe and reliable working power for each parts.
Above these a few part interconnected relationships constituted the one-piece construction framework of native system.
The further solution of the utility model:
1). all parts of the present utility model all are through just determining after the various tests, single-chip microcomputer is selected for use be MSP430F149IPM, the wireless data transmission module of low-power consumption select for use be ADF7021-N low-power consumption arrowband transceiver, digital temperature sensor select for use be DS18B20, communications serial interface chip select for use what be that ADM3312EA, power supply voltage stabilizing chip select for use be that SP6205, antenna select for use is the antenna of 475MHz frequency range.
2). the employed wireless communication frequency of the utility model is 470-510Mhz, emissive power 50mW, this frequency range is that the civil radio measuring instrument of national radio administration regulation uses frequency range.
3). the external power of wireless data concentrator of the present utility model and wireless temperature monitoring equipment is designed to switch power source adapter, and the power supply of wireless digital thermometric terminal is designed to the rechargeable lithium battary that overcharges and cross playing function.
4). the temperature information of wireless digital thermometric terminal of the present utility model collection is forwarded to monitoring equipment automatically by wireless data concentrator, by the frequency and the position of make rational planning for thermometric terminal and concentrator, reduces signal blind zone, improves system reliability.
5). the single-chip microcomputer of wireless digital thermometric terminal of the present utility model and wireless data transmission module all are dormant state in the time at non-temperature acquisition, and the power consumption of terminal is very little, after its inside lithium battery is full of, can the time of continuous working more than 2 years.
The beneficial effects of the utility model:
1). native system is simple in structure, and installation and maintenance is convenient.
2). native system has been selected digital temperature sensor low in energy consumption, that precision is high for use, has significantly reduced to utilize error artificial or that the analog temperature sensor thermometric causes.
3). what the radio band of native system was used is that measuring instrument uses frequency range, and the wireless system antijamming capability is strong, and the blind area is few, the reliability height.
4). native system has been realized the communication mechanism that data are transmitted step by step, and data transmission credibility and stability significantly improve.
5). native system has been realized the dormancy mechanism of monitoring terminal, has greatly reduced system power dissipation, and the monitoring terminal dispense with outer connecting power can long-time reliable and effective work.
6). native system can carry out automatically environment temperature, in real time, monitoring accurately, intelligent high.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is a system architecture diagram of the present utility model.
Fig. 2 is the circuit structure diagram of the utility model wireless digital thermometric terminal.
Fig. 3 is the circuit structure diagram of the utility model wireless data concentrator.
Fig. 4 A, Fig. 4 B and Fig. 4 C be wireless temperature measurement terminal among the utility model embodiment and wireless data concentrator the circuit connection diagram.
Embodiment
The overall formation of native system as shown in Figure 1.Among the figure: I is a plurality of wireless digital thermometric terminals.The profile of the wireless digital thermometric terminal of native system is the small plastic box body, and digital temperature sensor is embedded on the plastic box body, and wireless digital thermometric terminal is installed in the position that need carry out temperature survey point.II is 1 wireless data concentrator.III is temperature acquisition subsystem independently, is made up of II and I two parts.Adopt wireless communication mode between I and the II, network topology structure is star-like, and wireless data concentrator is installed in the communication signal part that can receive wireless digital thermometric terminal and just can.IV is a wireless temperature monitoring equipment, and it is made up of PC and wireless data transmission module.Adopt wireless communication mode between IV and a plurality of III, can form the MESH network.
Fig. 2 and Fig. 3 further show respectively, the circuit structure block diagram of wireless digital thermometric terminal and wireless data concentrator.
Fig. 4 A, Fig. 4 B, Fig. 4 C are the connection diagram of function pin and used electronic devices and components thereof between the selected chip of the utility model specific embodiment.Wireless digital thermometric terminal and wireless data concentrator are selected the peripheral circuit of circuit and the different designs of being mated in the module of required function separately for use, finish function separately respectively.
Shown in Fig. 4 A, the circuit diagram that single-chip microcomputer is connected with wireless data transmission module, that the U101 of present embodiment selects for use is the MSP430F149IPM of the low-power consumption of American TI Company.J401 and J402 are wireless data transmission modules, and they link to each other with two UART mouths of single-chip microcomputer respectively, and interface level is a Transistor-Transistor Logic level.
Shown in Fig. 4 B, the circuit diagram that single-chip microcomputer is connected with digital temperature sensor, that the U101 of present embodiment selects for use is the MSP430F149IPM of the low-power consumption of American TI Company.It is digital temperature sensor DS18B20 that U301 selects for use, is that the single bus interface by 3 line systems communicates between them.What the JATG sign among the figure was represented is the program download mouth of single-chip microcomputer, mainly is the internal processes that is used to upgrade single-chip microcomputer.
Shown in Fig. 4 C, power management module, that the U102 of present embodiment selects for use is the CMOS low-dropout regulator SP6205 of super low noise.The DC voltage of its input is up to 6V, is output as direct current 3.3V.What the DC-IN sign among the figure was represented is dc supply input.
Below sketch the course of work of the present utility model
Under system is in running order, wireless digital thermometric terminal is after the temperature acquisition time arrives, read the temperature data of digital temperature sensor, then temperature data is sent to the wireless data concentrator of its correspondence, wireless data concentrator can store temperature data in the data buffer into, up to receive that wireless temperature monitoring equipment sends read heat command after, the temperature data that it will collect all wireless digital thermometric terminal corresponding with it sends to wireless temperature monitoring equipment.Wireless temperature monitoring equipment can show up-to-date temperature data immediately after receiving temperature data, reach the effect of temperature monitoring.
To sum up, the formation of native system has reached the goal of the invention of expection.
Claims (5)
1. low-consumption wireless digital temperature automatic monitoring system, it is characterized in that: it mainly comprises wireless digital thermometric terminal, wireless data concentrator and wireless temperature monitoring equipment, this wireless digital thermometric terminal critical piece includes wireless data transmission module, antenna, digital temperature sensor, single-chip microcomputer, power management module, lithium battery, and each wireless temperature measurement terminal is installed in the everywhere point for measuring temperature; Wireless data concentrator includes 2 wireless data transmission modules, 2 antennas, digital temperature sensor, single-chip microcomputer, power management module, external power source at least; Wireless temperature monitoring equipment includes monitoring computer, wireless data transmission module, antenna, the external power of being with serial ports at least.
2. low-consumption wireless digital temperature automatic monitoring system according to claim 1, it is characterized in that: the wireless data transmission module of described wireless digital thermometric terminal links to each other with antenna, be connected with wireless data concentrator by wireless, single-chip microcomputer links to each other with digital temperature sensor, wireless data transmission module, and power supply overcharges and cross the rechargeable lithium battary of playing function for band.
3. low-consumption wireless digital temperature automatic monitoring system according to claim 1, it is characterized in that: the wireless data transmission module of described wireless data concentrator links to each other with antenna, be connected with wireless digital thermometric terminal, wireless temperature monitoring equipment by wireless, single-chip microcomputer links to each other with digital temperature sensor, wireless data transmission module, and external power is a switch power source adapter.
4. low-consumption wireless digital temperature automatic monitoring system according to claim 1, it is characterized in that: the wireless data transmission module of described wireless temperature monitoring equipment links to each other with antenna, be connected with wireless data concentrator by wireless, described wireless data transmission module links to each other with the serial ports of monitoring computer simultaneously, and external power is a switch power source adapter.
5. according to claim 1 or 2 or 3 or 4 described low-consumption wireless digital temperature automatic monitoring systems, it is characterized in that: single-chip microcomputer is selected for use be MSP430F149IPM, the wireless communication module of low-power consumption select for use be ADF7021-N low-power consumption arrowband transceiver, digital temperature sensor select for use be DS18B20, communications serial interface chip select for use what be that ADM3312EA, power supply voltage stabilizing chip select for use be that SP6205, antenna select for use is the antenna of 475MHz frequency range.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201105378U CN201522335U (en) | 2009-07-31 | 2009-07-31 | Automatic low power-consumption wireless digital temperature monitoring system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201105378U CN201522335U (en) | 2009-07-31 | 2009-07-31 | Automatic low power-consumption wireless digital temperature monitoring system |
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| CN201522335U true CN201522335U (en) | 2010-07-07 |
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| CN2009201105378U Expired - Fee Related CN201522335U (en) | 2009-07-31 | 2009-07-31 | Automatic low power-consumption wireless digital temperature monitoring system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102438036A (en) * | 2011-09-27 | 2012-05-02 | 浙江海康集团有限公司 | Real-time monitoring system for safe construction of building engineering structure and application method thereof |
| CN105526952A (en) * | 2014-09-28 | 2016-04-27 | 沈阳中科奥维科技股份有限公司 | Low-power wireless meter realizing device and realizing method |
| CN105953935A (en) * | 2016-06-27 | 2016-09-21 | 南通市建筑科学研究院有限公司 | Temperature hot-fluid wireless itineration detector |
-
2009
- 2009-07-31 CN CN2009201105378U patent/CN201522335U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102438036A (en) * | 2011-09-27 | 2012-05-02 | 浙江海康集团有限公司 | Real-time monitoring system for safe construction of building engineering structure and application method thereof |
| CN105526952A (en) * | 2014-09-28 | 2016-04-27 | 沈阳中科奥维科技股份有限公司 | Low-power wireless meter realizing device and realizing method |
| CN105953935A (en) * | 2016-06-27 | 2016-09-21 | 南通市建筑科学研究院有限公司 | Temperature hot-fluid wireless itineration detector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100707 Termination date: 20110731 |