CN201025455Y - Infrared multi-point temperature measurement instrument - Google Patents
Infrared multi-point temperature measurement instrument Download PDFInfo
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- CN201025455Y CN201025455Y CNU2007200058544U CN200720005854U CN201025455Y CN 201025455 Y CN201025455 Y CN 201025455Y CN U2007200058544 U CNU2007200058544 U CN U2007200058544U CN 200720005854 U CN200720005854 U CN 200720005854U CN 201025455 Y CN201025455 Y CN 201025455Y
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- infrared
- temperature measuring
- measuring instrument
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Abstract
The utility model relates to a temperature measuring device and discloses a multi-point infrared temperature measuring device. The utility model comprises a CPU, a sensor, a display unit, a data storage unit and a power. The sensor is connected with the CPU through SMBus main line. The CPU is respectively connected with the display unit, the data storage unit and the USB interface circuit. The sensor used in the utility model is an infrared thermometer which is provided with the infrared temperature measurement and the real-time modulus transfer. The infrared thermometer can be connected with as many as 128 infrared probes and measure the temperature of 128 different positions at the same time. With the SMBus main line to transmit data, the transmitting speed is fast, the control and use are convenient. Because of the low energy consumption, the longtime work can go on with the use of batteries.
Description
Technical field
The utility model relates to a kind of temperature measurement equipment, specifically, relates to a kind of multipoint temperature measuring equipment of infrared acquisition.
Background technology
At present, the equipment of measuring temperature with infrared acquisition has many kinds, in that medically application is many especially, still can only test a point mostly especially.At present, though the radiation thermometer of the ultrared a plurality of sensor elements of detectable zones of different is also arranged, it as the patent No. patent of invention of 99810401.9 " have the radiation thermometer of a plurality of sensor elements and radiation sensor and measure method of temperature ", put down in writing the radiation thermometer that to measure multiple spot in this patent, but the point of its measurement is insufficient, data rate is slow, and control and use are inconvenient.
Summary of the invention
A kind of infrared multipoint temperature measuring instrument that the utility model designs in order to solve the problems of the technologies described above just.
The technical scheme that its technical matters that solves the utility model adopts is:
A kind of infrared multipoint temperature measuring instrument comprises central processing unit, sensor, display unit, data storage cell and power supply.Sensor links to each other with central processing unit (CPU) by SMBus (System Management Bus) bus, and central processing unit links to each other with data storage cell with display unit respectively.
But the central processing unit of described infrared multipoint temperature measuring instrument adopts the online programming single-chip microcomputer.Further, the central processing unit of described infrared multipoint temperature measuring instrument is the MSP430F435 single-chip microcomputer that Texas Instruments produces.
The sensor of described infrared multipoint temperature measuring instrument is for having the infrared temperature detection and carrying out analog-to-digital infra-red thermometer in real time, and sensor can connect 1 to 128 infrared probe.Further, the sensor of described infrared multipoint temperature measuring instrument is the MLX90614 infra-red thermometer of Melexis company.
The display unit of described infrared multipoint temperature measuring instrument is the LCD display device.Power supply is the 3V direct supply.Central processing unit links to each other with usb circuit, links to each other with external unit by USB interface.
1, the used single-chip microcomputer of the utility model is MSP430F435, has following characteristics:
● low suppling voltage scope: 1.8V----3.6V
● super low-power consumption
● five kinds of battery saving modes
● wake up from waiting status in the 6uA
● 16 reduced instruction structures, 125nS cycle instruction time
● have the inner parameter level, 12 A/D converters of sampling maintenance and autoscan characteristic
● have 16 bit timing device B of three or seven seizure/comparison shadow registers
● have 16 bit timing device A of three seizure/comparand registers
● chip integration becomes comparer
● a MSP430F435 chip has a UART (UART0)
● voltage monitor
● have supply voltage manager/monitor that programmable levels detects
● the serial online programming need not outside program voltage, programmable safety fuse code protection
● integrated nearly 160 sections lcd driver
● 16KB+256B flash storer
2, the used sensor of the utility model is MLX90614, has following characteristics:
The MLX90614 infra-red thermometer series that Melexis releases, it is a kind of small-sized, contactless thermometer that cost performance is high, the digital temperature reading of remote objects through fully calibrating can be provided, realize by an infrared ray sensor is combined in a jar shape (TO-can) encapsulation with customization Signal Regulation chipset.Based on built-in intelligenceization, high precision and the big operating temperature range of MLX90614, can easily the non-contact type temperature measurement meter be inserted in the Medical Devices.
Sensing element among the MLX90614 is automobile-used level silicon wafer, and the slim micromachined barrier film that it has is by the infrared emission heating of remote objects.Heat is recorded by the chip thermopair.The built-in signal of customization is regulated the small thermocouple voltages of chip amplification and with its digitizing, is set calibration parameter by using the factory that stores in the chip eeprom memory, calculates the temperature of object.The numeral output temperature is complete linearization and environment temperature is carried out over-compensation.By SMBus or continuous pwm signal, sensor is transported to the result in user's application.Whole thermometer system in package is in a TO-can.These characteristics provide following advantage: do not need expensive external module, can easily sensor be incorporated on the application circuit (PCB).This self-tolerant system has solved the design challenges of small voltage signal, environmental impact and Electro Magnetic Compatibility, otherwise a lot of difficulties and trouble that these factors can cause infrared temperature to be measured.Compare with other infrared ray solution in the market, the integrated level of MLX90614 is higher.
MLX90614 has adopted advanced low noise amplifier in its Signal Regulation chip, the analog to digital converter of a 17-bit (ADC) and powerful digital signal processing (DSP) unit, make it when keeping 0.01 ℃ of temperature resolution, allow-40 ℃ to 125 ℃ super large operating temperature range, and-70 ℃ to 380 ℃ Extended Object temperature range.In 0 ℃ to 50 ℃ object temperature scope, the MLX90614 of standard has ± 0.5 ℃ absolute accuracy; Beyond this scope, degree of accuracy is ± 1 ℃.
3, SMBus bus
SMBus (System Management Bus) is proposed by Intel nineteen ninety-five, is applied to the low rate communication in mobile PC and the desktop PC system.It mainly is to wish to come the equipment on the control main board and collect corresponding information by a cheapness and powerful bus.SMBus is a kind of two-wire system universal serial bus, and SMBus need not increase additional pin, creates this bus and mainly is in order to increase new functional characteristic, but only be operated in 100kHz and use towards the intelligent battery management specially.It is operated in master/slave pattern: main device provides clock, initiates to provide when once transmitting a start bit at it, stops providing when once transmitting a position of rest at it; From device have one unique 7 or 10 from address of devices.SMBus provides a control bus for system and the such task of power management, uses the system of SMBus, and sending and receive message between the equipment all is by SMBus, rather than uses independent control line, can save the number of pins of equipment like this.Use SMBus, equipment can also provide its production information, tells system its model, and part number etc. at its state of preservation of some incidents, reports different classes of mistake, the reception controlled variable, and return its state etc.
4, power supply
Cpu chip and sensor all adopt direct current 3V power supply, all belong to low energy-consumption electronic device, so the instrument working time is long, and battery is changed easily.
The beneficial effects of the utility model are: infrared multipoint temperature measuring instrument can connect nearly 128 infrared probes, can measure the temperature at 128 positions simultaneously, adopts the SMBus bus transfer data, and transmission speed is fast, control and very easy to use; Because it is low in energy consumption, can use battery to work long hours.
Description of drawings
Fig. 1 is the utility model system chart.
Embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
As shown in Figure 1, a kind of infrared multipoint temperature measuring instrument of the utility model comprises central processing unit, sensor, display unit, data storage cell and power supply.Sensor links to each other with central processing unit by the SMBus bus, and central processing unit links to each other with data storage cell with display unit respectively.Central processing unit is the MSP430F435 single-chip microcomputer that Texas Instruments produces; Sensor is the MLX90614 infra-red thermometer of Melexis company, and sensor can connect 1 to 128 infrared probe; Display unit is the LCD display device; Central processing unit links to each other with usb circuit, links to each other with external unit by USB interface; Power supply is the 3V direct supply.
The utility model is not limited to above-mentioned preferred forms, and other any identical with the utility model or akin products that anyone draws under enlightenment of the present utility model all drop within the protection domain of the present utility model.
Claims (9)
1. one kind infrared multipoint temperature measuring instrument comprises central processing unit, sensor, display unit, data storage cell and power supply; It is characterized in that: sensor links to each other with central processing unit by the SMBus bus, and central processing unit links to each other with data storage cell with display unit respectively.
2. infrared multipoint temperature measuring instrument according to claim 1 is characterized in that: but central processing unit adopts the single-chip microcomputer of online programming.
3. infrared multipoint temperature measuring instrument according to claim 2 is characterized in that: central processing unit is the MSP430F435 single-chip microcomputer that Texas Instruments produces.
4. infrared multipoint temperature measuring instrument according to claim 1 is characterized in that: sensor is for having the infrared temperature detection and carrying out analog-to-digital infra-red thermometer in real time.
5. infrared multipoint temperature measuring instrument according to claim 4 is characterized in that: sensor can connect 1 to 128 infrared probe.
6. infrared multipoint temperature measuring instrument according to claim 4 is characterized in that: sensor is the MLX90614 infra-red thermometer of Melexis company.
7. infrared multipoint temperature measuring instrument according to claim 1 is characterized in that: display unit is the LCD display device.
8. infrared multipoint temperature measuring instrument according to claim 1, it is characterized in that: central processing unit links to each other with usb circuit.
9. infrared multipoint temperature measuring instrument according to claim 1 is characterized in that: power supply is the 3V direct supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200058544U CN201025455Y (en) | 2007-03-07 | 2007-03-07 | Infrared multi-point temperature measurement instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200058544U CN201025455Y (en) | 2007-03-07 | 2007-03-07 | Infrared multi-point temperature measurement instrument |
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| Publication Number | Publication Date |
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| CN201025455Y true CN201025455Y (en) | 2008-02-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2007200058544U Expired - Fee Related CN201025455Y (en) | 2007-03-07 | 2007-03-07 | Infrared multi-point temperature measurement instrument |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101799358B (en) * | 2010-01-27 | 2011-08-10 | 中国科学院上海技术物理研究所 | Novel infrared-mark temperature control system with wireless transmission function |
| CN102973250A (en) * | 2012-11-16 | 2013-03-20 | 中国人民解放军第四军医大学 | Non-contact medical temperature measuring device and application thereof |
| CN104697641A (en) * | 2015-03-17 | 2015-06-10 | 太原市同心得科贸有限公司 | STM32-based (STMicroelectronics 32) infrared temperature sensor |
| CN104776921A (en) * | 2014-01-10 | 2015-07-15 | 国家电网公司 | Multipoint temperature measurement device |
| CN109459139A (en) * | 2018-11-30 | 2019-03-12 | 武汉泽塔电气科技有限公司 | A kind of Multi probe infrared temperature measurement device |
| CN117305099A (en) * | 2023-10-08 | 2023-12-29 | 安徽贝宝食品有限公司 | Rotatable full-automatic fermentation equipment and method |
-
2007
- 2007-03-07 CN CNU2007200058544U patent/CN201025455Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101799358B (en) * | 2010-01-27 | 2011-08-10 | 中国科学院上海技术物理研究所 | Novel infrared-mark temperature control system with wireless transmission function |
| CN102973250A (en) * | 2012-11-16 | 2013-03-20 | 中国人民解放军第四军医大学 | Non-contact medical temperature measuring device and application thereof |
| CN104776921A (en) * | 2014-01-10 | 2015-07-15 | 国家电网公司 | Multipoint temperature measurement device |
| CN104697641A (en) * | 2015-03-17 | 2015-06-10 | 太原市同心得科贸有限公司 | STM32-based (STMicroelectronics 32) infrared temperature sensor |
| CN109459139A (en) * | 2018-11-30 | 2019-03-12 | 武汉泽塔电气科技有限公司 | A kind of Multi probe infrared temperature measurement device |
| CN117305099A (en) * | 2023-10-08 | 2023-12-29 | 安徽贝宝食品有限公司 | Rotatable full-automatic fermentation equipment and method |
| CN117305099B (en) * | 2023-10-08 | 2024-05-14 | 安徽贝宝食品有限公司 | Rotatable full-automatic fermentation equipment and method |
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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: 20080220 Termination date: 20120307 |