WO2023147765A1

WO2023147765A1 - Indoor air temperature online monitoring and calibration apparatus

Info

Publication number: WO2023147765A1
Application number: PCT/CN2023/073644
Authority: WO
Inventors: 方修睦; 尹超; 王小雨
Original assignee: 山东基点智慧能源科技有限公司; 哈尔滨中冕智慧能源科技有限公司
Priority date: 2022-02-07
Filing date: 2023-01-29
Publication date: 2023-08-10
Also published as: CN114459635A

Abstract

An indoor air temperature online monitoring and calibration apparatus, which comprises an upper computer management system, a calibration device, and a room temperature online monitoring device; the calibration device comprises a tripod mount platform (9) and a straight arm mount platform (10); a room temperature detection point positioning unit, horizontal measurement units (4), a driving unit (5), and a mount platform control unit (8) are integrated on the tripod mount platform (9); there are two horizontal measurement units (4), and the two horizontal measurement units (4) are respectively mounted in a direction parallel to the straight arm mount platform (10) and a direction perpendicular to the straight arm mount platform (10); the room temperature detection point positioning unit comprises a first laser distance measurement unit (1), a second laser distance measurement unit (2), and a third laser distance measurement unit (3); and a reference room temperature measurement unit (62) and a room temperature calibration unit (65) are integrated on the straight arm mount platform (10).

Description

A device for online monitoring and calibration of indoor air temperature

technical field

The invention relates to the field of central heating in cities and towns, and more specifically relates to an online monitoring device calibration device for indoor air temperature (hereinafter referred to as room temperature).

Background technique

On-line monitoring of room temperature refers to the use of digital display thermometers installed in the interior space of buildings to continuously and automatically measure room temperature, and the measured room temperature data is remotely transmitted to the host computer management system for display through communication equipment for management personnel to monitor. .

For room temperature online monitoring equipment, such as switch-type room temperature online monitoring equipment, it is an advanced IoT sensing device that integrates light switches and digital thermometers. By replacing the ordinary light switch in a building space, the room temperature measuring points and working power are obtained to realize continuous and automatic measurement of room temperature, and the measured room temperature data is uploaded to the host computer management system for use.

On-line monitoring of room temperature has always had the disadvantage of low measurement accuracy. The main reason for this disadvantage is that most of the monitoring equipment uses the installation location as the room temperature measurement point. Due to the limitation of objective conditions, the installation location of the monitoring equipment cannot be standardized. , uniform, there is a large error in temperature sampling. Central heating in my country mainly has two forms of heat dissipation systems: radiator and floor radiant heating. The radiator system uses convection between the radiator and the indoor air to exchange heat. The room temperature increases with height, and the horizontal distance from the radiator is different. , the room temperature is also different, and there is a large temperature gradient; the heat of the floor radiant heating system is mainly radiated to the space through the ground, which causes the room temperature to decrease with the change of height, and the average temperature of the surface of the indoor partition wall is higher than the average room temperature.

Affected by room temperature gradient changes, the number of room temperature online monitoring equipment deployed in a building indoor space, the location of the measuring point, the distance between the measuring point and the heat source, the wall, and the ground will all affect the accuracy of the measurement. There is a large error between the room temperature data and the standard room temperature data, and there has been no feasible equipment and method for calibration, so that the room temperature data measured by a large number of room temperature online monitoring equipment that has been put into use is not authoritative and cannot be used as a certificate of standard room temperature, causing huge waste.

To sum up, on-line room temperature monitoring is of great significance to building energy conservation and emission reduction, and the scope of application needs to be further expanded. How to reduce or eliminate the error of the room temperature online monitoring system has become an urgent problem to be solved.

Contents of the invention

The technical problem to be solved by the present invention is to provide a device for online monitoring and calibration of indoor air temperature for the above deficiencies. to solve the drift of the temperature sensor itself in the room temperature online monitoring equipment, the drift of the installation process, and the room temperature sensor sampling error caused by the thermal effect of room temperature gradient changes. By calibrating the room temperature collector, the accuracy of its room temperature acquisition can be improved, whether it is The radiator or the room temperature online monitoring device of the floor radiant heating system can be calibrated by the invention.

In order to solve the above technical problems, the present invention adopts the following technical solutions:

A device for online monitoring and calibration of indoor air temperature, including a host computer management system, calibration equipment and room temperature online monitoring equipment;

The calibration equipment includes a tripod head and a straight arm head. The tripod head is integrated with a room temperature detection point positioning unit, a level measurement unit, a drive unit and a head control unit. The number of level measurement units is two, two Two horizontal measuring units are respectively installed in the direction parallel to the straight-arm pan-tilt and the vertical direction of the straight-arm pan-tilt. The detection point positioning unit at room temperature includes a first laser ranging unit, a second laser ranging unit, and a third laser ranging unit. The straight arm gimbal is integrated with a standard room temperature measurement unit and a room temperature calibration unit.

Further, the calibration device further includes a tripod support frame, a tripod vertical telescopic rod is installed on the top of the tripod support frame, and a tripod head is installed on the top of the tripod vertical telescopic rod.

Further, the straight-arm pan-tilt is fixed on the tripod pan-tilt, and a rotary stepping motor is installed on the vertical telescopic rod of the tripod.

Further, the straight-arm pan/tilt includes a straight-arm pan/tilt telescopic rod and a balanced telescopic rod, the balanced telescopic rod is installed above the straight-arm pan/tilt telescopic rod, and the straight-arm pan/tilt telescopic rod and the balanced telescopic rod are synchronously and reversely telescopic, to keep the equipment balanced.

Further, the rotary stepper motor is installed perpendicular to the tripod head, which can drive the tripod head and the straight arm head to rotate to change their angles, and simultaneously drive the straight arm head telescopic rod and the balance telescopic rod to expand and contract synchronously. To change the length of the straight-arm pan-tilt, the pan-tilt control unit controls the drive unit to drive the rotary stepper motor to act.

Further, the standard room temperature measuring unit integrates a platinum resistance digital display temperature sensor and a DS18B20 digital display temperature sensor.

Further, the room temperature calibration unit includes a standard room temperature data storage module, a first short-range wireless communication module and a first long-range wireless communication module.

Further, the room temperature online monitoring device includes a room temperature collector and a room temperature sensor, and the room temperature collector includes a first temperature sensing module, a second short-distance wireless communication module, a second long-distance wireless communication module, a first data calculation module and The first data storage module, the room temperature sensor includes a second temperature sensing module, a third short-distance wireless communication module and a second data storage module.

Further, the host computer management system includes a data temporary storage module, a room temperature calibration calculation module and a calibration room temperature storage application module, which has storage and room temperature sensor calibration functions, and can accept the standard room temperature measured by the calibration device 10 and the room temperature online monitoring device The measured room temperature data to be calibrated is used to correct the temperature sensor to be calibrated through the calibration algorithm, and Store calibration data for future use.

Further, the room temperature online monitoring equipment, calibration equipment and the host computer management system communicate wirelessly or wiredly, and communicate between the room temperature collector and the room temperature sensor.

The present invention adopts the above technical scheme, and compared with the prior art, it has the following technical effects:

Use the high-precision room temperature data collected by the room temperature calibration instrument at the measurement point position specified by the national standard as the calibration data, and calibrate the room temperature collector installed on the wall. Through calibration, the installation position deviates from the room temperature acquisition of the legal monitoring point The instrument is calibrated online, thereby eliminating the error of the room temperature online monitoring device and improving the accuracy.

1. Whether it is a radiator, floor radiant heating or other heating system room temperature online monitoring system, through the calibration of the present invention, standard or close to standard room temperature data can be obtained, which can expand the usage scenarios and usage of room temperature online monitoring equipment Environment, in order to facilitate the promotion and popularization of the room temperature online monitoring system.

2. The procedure of calibrating a room temperature online monitoring device can be simplified to reduce the cost of calibrating the room temperature online monitoring device.

3. The calibration process of a room temperature sensor can be accelerated to reduce the calibration time of the room temperature sensor.

4. It can conveniently and quickly determine the number, position and distance of the indoor legal room temperature measuring points of the building, and measure the standard room temperature for use in calibrating the room temperature online monitoring equipment. During the process of operating the calibration system to measure the standard room temperature at legal measuring points, the degree of interference to users is low.

5. Enable the calibration system equipment to automatically identify and deal with the deviation of the calibration system equipment from the position and distance of the legal measuring point during the process of measuring the standard room temperature at the legal measuring point, so as to ensure the accuracy of the standard room temperature measurement.

6. Make the calibration system equipment able to identify and deal with the steep temperature rise and drop caused by human factors during the process of measuring standard room temperature at statutory measuring points, so as to maintain the seriousness of standard room temperature measurement.

7. It can avoid the interference of thermal radiation such as sunlight during the process of measuring standard room temperature at legal measuring points, which will affect the measurement accuracy of standard room temperature.

Description of drawings

In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings that need to be used in the description of the specific embodiments or the prior art. Throughout the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, elements or parts are not necessarily drawn in actual scale.

Fig. 1 is the top view structure schematic diagram of the cloud platform in the device of monitoring and calibration among the present invention;

Fig. 2 is the side view structure schematic diagram of the cloud platform in the device of monitoring and calibration among the present invention;

Fig. 3 is a schematic diagram of the measurement and positioning principle of the room center position in the present invention;

4 to 16 are circuit diagrams of calibration equipment in the present invention;

Fig. 17 is a structural block diagram of the device for online monitoring and calibration of indoor air temperature in the present invention.

Detailed ways

Embodiment 1, as shown in Figures 1 to 3, is a device for online monitoring and calibration of indoor air temperature, including a host computer management system, calibration equipment, and online room temperature monitoring equipment.

The calibration equipment includes a tripod head 9 and a straight arm head 10, the tripod head 9 is integrated with a room temperature detection point positioning unit, a level measurement unit 4, a drive unit 5 and a head control unit 8, and a level measurement unit 4 The quantity is two, and two horizontal measurement units 4 are respectively installed in the direction parallel to the straight-arm platform 10 and the vertical direction of the straight-arm platform 10. The distance measuring unit 2 , the third laser distance measuring unit 3 , and the straight arm pan/tilt 10 are integrated with a standard room temperature measurement unit 62 and a room temperature calibration unit 65 .

Described calibration equipment also comprises triangular support frame 15, and the top of triangular support frame 15 is equipped with tripod vertical expansion link 14, and the top of tripod vertical expansion link 14 is equipped with tripod platform 9, and straight arm platform 10 is fixed on triangle On the frame cloud platform 9, the vertical telescopic rod 14 of the tripod is equipped with a rotary stepper motor 11, and the straight arm cloud platform 10 includes a straight arm cloud platform telescopic rod 12 and a balance telescopic rod 13, and the balance telescopic rod 13 is installed on the straight arm cloud platform. Above the telescopic rod 12, the straight-arm pan/tilt telescopic rod 12 and the balance telescopic rod 13 are synchronously and reversely telescopic to keep the equipment balanced.

Described rotary stepping motor 11 is installed perpendicular to tripod head 9, can drive tripod head 9 and straight arm head 10 to rotate and change its angle, can drive straight arm head telescopic rod 12 and balance telescopic rod 13 simultaneously The length of the straight-arm pan/tilt 10 is changed by synchronous expansion and contraction, and the pan/tilt control unit 8 controls the action of the rotary stepper motor 11 .

Place the calibration equipment at a point O' in the indoor space of a building, adjust the straight-arm pan/tilt 10 to a given height of 1m-1.5m, pass the first laser ranging unit 1, the second laser ranging unit 2 and the third The laser distance measuring unit 3 measures the distance from O' to the three corners of the room, and measures the angles in the three directions through the rotation of the rotating stepper motor 11, and calculates the distance from O' to the room temperature of the indoor space through trigonometric calculations. The distance d and angle β of point O.

In order to realize the position, distance measurement and position provision of the legal room temperature measuring point, before the positioning of the room temperature legal measuring point, it is necessary to horizontally level, measure and adjust the straight arm cloud platform 10 through the level measuring unit 4, and then After the legal measuring point O is positioned, it is necessary to rotate the straight-arm platform 10 by β degrees to point to the direction of point O, adjust the length of the telescopic rod 12 of the straight-arm platform, and measure the standard room temperature located at the straight-arm platform. The unit 62 is deployed to the legal measuring point O of determination, and starts to measure the standard room temperature. In order to keep the balance of the straight-arm platform 10, a balance telescopic rod 13 is added above the telescopic rod 12 of the straight-arm platform, which is connected with the The telescoping rod 12 of the straight-arm pan/tilt telescopically expands and contracts synchronously.

The horizontal adjustment of the straight-arm head 10 is completed by manually operating the two-way level measuring unit on the tripod head 9 and the leveling screw installed on the vertical telescopic rod 14 of the tripod.

The height measurement and adjustment of the straight-arm cloud platform, the third laser range-finding unit 3 installed by the vertical tripod platform 9 (accurate degree 1mm) and the vertical telescopic rod 14 are automatically adjusted by electronic control.

The measurement positioning of the legal room temperature measuring point is automatically adjusted by electronic control by the laser distance measuring unit 1 horizontally installed on the tripod head and the vertically installed rotary stepper motor 11 (resolution 0.05 °), and The three angles are manually confirmed by the remote controller, and the distances a, b, c and angles of the three angles are measured, and the rotation angle β and For the distance d, the pan/tilt control unit 8 converts the calculated angle into the number of motor rotation steps, and turns the end of the straight arm pan/tilt 10 installed with the standard room temperature measurement unit 62 to the direction of the room temperature legal measuring point O.

By adjusting the distance between the standard room temperature measuring unit 62 installed at one end of the straight arm platform 10 and the legal room temperature measuring point O by the laser distance measuring unit 2 installed horizontally on the straight arm platform 10 and the straight arm platform telescopic rod 12 The standard room temperature measurement unit 62 is deployed at the position of the legal room temperature measuring point to measure the legal room temperature.

Optionally, the control measurement, measurement data calculation, remote control communication, data display and other work of the laser rangefinder and the electric telescopic rod are all completed by the calibration equipment control unit installed on the tripod head.

By operating the straight-arm pan/tilt telescopic rod 12 of the calibration equipment, the standard room temperature measurement unit 62 can be deployed at a legal measuring point above the furniture with a height of 1.5m, and during the standard room temperature measurement process, the Interference with the normal work and life order of users.

In addition, as shown in Figure 17, preferably, the standard room temperature measurement unit 62 of the calibration equipment integrates a platinum resistance digital display temperature sensor and a DS18B20 digital display temperature sensor, and the measurement accuracy is ±0.15°C, which is used for online monitoring of the room temperature The device provides reliable high-precision standard room temperature data.

Preferably, the standard room temperature measurement unit 62 can monitor the horizontal direction through the built-in G-sensor and the data changes of the first laser distance measuring unit 1, the second laser distance measuring unit 2, and the third laser distance measuring unit 3. Displacement in the vertical and vertical directions is identified in real time and reported to the host computer management system for processing to ensure the accuracy of the standard room temperature measurement results.

Those skilled in the art should understand that the standard room temperature measurement unit 62 can, but is not limited to, use a built-in G-sensor and use a laser positioner for displacement recognition and judgment, and its displacement judgment method can also be replaced by other methods as required.

In addition, the heat-shielding shell of the standard room temperature measurement unit 62 adopts a louver-type radiation-proof ventilation cover structure, and high-quality anti-ultraviolet materials are used to reduce measurement errors caused by strong light. In particular, the present invention installs a DS18B20 digital display temperature sensor on the top of the heat-shielding shell, which is used to identify the behavior of shielding the ventilation hood and human intervention in the measurement results, and reports to the host computer management system for processing, so as to Ensure the fairness of measurement data.

The room temperature calibration unit 65 includes a standard room temperature data storage module, a first short-range wireless communication module and a first long-range wireless communication module.

As shown in Fig. 4 to Fig. 16, described room temperature calibration unit 65 comprises chip U9, and the model of chip U9 is R5F100FE, Pin 5 of chip U9 is connected to one end of resistor R6, one end of crystal oscillator X2 and one end of capacitor C32, pin 4 of chip U9 is connected to the other end of resistor R6 and one end of resistor R9, and the other end of resistor R9 is connected to the other end of crystal oscillator X2 and one end of capacitor C4. The other end of capacitor C32 and the other end of capacitor C4 are grounded, pin 8 of chip U9 is connected to one end of resistor R10, pin 3 of crystal oscillator X3 and one end of capacitor C25, pin 7 of chip U9 is connected to the other end of resistor R10, pin 1 of crystal oscillator X3 and One end of the capacitor C26, pins 2 and 4 of the crystal oscillator X3, the other end of the capacitor C26 and the other end of the capacitor C25 are grounded.

Pin 41 of the chip U9 is connected to one end of a resistor R19, the other end of the resistor R19 is connected to one end of a light-emitting diode LED1, the other end of the light-emitting diode LED1 is grounded, pin 33 of the chip U9 is connected to one end of a resistor R21, and the other end of the resistor R21 is connected to a light-emitting diode One end of LED3, the other end of LED3 is grounded, the pin 6 of chip U9 is connected with one end of resistor R16, one end of button S2 and one end of capacitor C23, the other end of resistor R6 is connected to VDD_MCU power supply, the other end of capacitor C23 and the other end of button S2 are grounded.

The room temperature calibration unit 65 also includes a chip U1, the model of the chip U1 is BS813C-1, the 1 pin of the chip U1 is connected with one end of the capacitor C8, and contacts the detection point TOUCH_1, and the 3 pin of the chip U1 is connected with one end of the capacitor C6, and contacts Detection point TOUCH_3, the other end of capacitor C6 and the other end of capacitor C8 are grounded, the 4 pin of chip U1 is connected to one end of resistor R37, the other end of resistor R37 is connected to 21 pin of chip U9, the 6 pin of chip U1 is connected to one end of resistor R18, the resistor The other end of R18 is connected to the 16-pin of the chip U9, the 8-pin of the chip U1 is connected to one end of the capacitor C9, and connected to the VDD_MCU power supply, and the other end of the capacitor C9 is grounded.

The room temperature calibration unit 65 also includes a chip U2, the model of the chip U2 is DS18B20, the 2 pin of the chip U2 is connected with the 32 pin of the chip U9 and one end of the resistor R22, and the other end of the resistor R22 and the 3 pin of the chip U2 are connected to the VDD_SENSOR power supply.

The room temperature calibration unit 65 also includes a chip U4, the model of the chip U4 is FLASH SOIC8, the 1 pin of the chip U4 is connected with the 17 pin of the chip U9, the 2 pins of the chip U4 are connected with the 18 pin of the chip U9, and the 3 pins of the chip U4 Connect to VDD_MCU power supply, pin 5 of chip U4 is connected to pin 19 of chip U9, pin 6 of chip U4 is connected to pin 20 of chip U9, pin 2 and pin 8 of chip U4 are connected to one end of capacitor C1, and connected to VDD_MCU power supply, capacitor The other end of C1 is grounded.

The room temperature calibration unit 65 also includes a toggle switch S3, the model of the toggle switch S3 is K3-1290S, the pin 1 of the toggle switch S3 is connected to one end of a resistor R15, the other end of the resistor R15 is connected to the VDD_MCU power supply, and the pin of the toggle switch S3 Pin 2 is connected to pin 12 of chip U9, pin 3 of toggle switch S3 is connected to one end of resistor R1, the other end of resistor R1 is grounded, pin 15 of chip U9 is connected to one end of resistor R47 and one end of resistor R46, and the other end of resistor R46 is connected to VDD_MCU power supply, the other end of the resistor R47 is grounded, the pin 13 of the chip U9 is connected to one end of the resistor R17 and one end of the resistor R14, the other end of the resistor R14 is connected to the VDD_MCU power supply, and the other end of the resistor R17 is grounded.

The room temperature calibration unit 65 also includes a chip U3, the model of the chip U3 is CMT2300A, one end of the capacitor C16 is connected to the 7 pin of the chip U3, and connected to the VDD_RF power supply, the other end of the capacitor C16 is grounded, and the 9 pin of the chip U3 is connected to one end of the resistor R26 One end of capacitor C13, the other end of capacitor C13 is grounded, the other end of resistor R26 is connected to pin 26 of chip U9, the chip Pin 10 of U3 is connected to one end of resistor R38, one end of resistor R27 and one end of capacitor C12, the other end of capacitor C12 is grounded, the other end of resistor R38 is connected to pin 27 of chip U9, the other end of resistor R27 is connected to pin 28 of chip U9, chip U3 Pin 11 of the chip is connected to one end of resistor R28 and one end of capacitor C11, the other end of capacitor C11 is grounded, the other end of resistor R28 is connected to pin 25 of chip U9, and pin 12 of chip U3 is connected to one end of resistor R29 and one end of capacitor C10, and the other end of capacitor C10 ground, and the other end of the resistor R29 is connected to pin 24 of the chip U9.

The 4 pins of the chip U3 are connected with one end of the inductor L1, one end of the capacitor C17, one end of the capacitor C18, one end of the capacitor C43 and one end of the TVS tube E1, and connected to the VDD_RF power supply, the other end of the capacitor C17, the other end of the capacitor C18, the other end of the capacitor C43 and The other end of the TVS tube E1 is grounded, the pin 3 of the chip U3 is connected to the other end of the inductor L1 and one end of the capacitor C19, the other end of the capacitor C19 is connected to the end of the inductor L2, the other end of the inductor L2 is connected to the end of the capacitor C20 and the end of the capacitor C44, and the other end of the capacitor C20 One end of capacitor C44 is connected to one end of inductor L4, one end of capacitor C22 and one end of inductor L3, the other end of inductor L4 is connected to one end of capacitor C21 and one end of inductor L5, the other end of capacitor C21 is connected to ground, and the other end of inductor L5 is connected to one end of capacitor C45 One end of the TVS tube E2 is connected in parallel with the ANT_RF detection point, the other end of the capacitor C45 and the other end of the TVS tube E2 are grounded, and the pin 2 of the chip U3 is connected with one end of the inductor L6, one end of the inductor L7, and the other end of the capacitor C22, and the other end of the inductor L7 is grounded. Pin 1 of chip U3 is connected to the other end of inductor L6, one end of capacitor C46 and the other end of inductor L3, the other end of capacitor C46 is grounded, pin 16 of chip U3 is connected to one end of resistor R31, and the other end of resistor R31 is connected to pin 23 of chip U9. Pin 15 of the chip U3 is connected to one end of a resistor R32, and the other end of the resistor R32 is connected to pin 22 of the chip U9.

Pin 13 of the chip U3 is connected with pin 1 of crystal oscillator X1 and one end of capacitor C14, pin 14 of chip U3 is connected with pin 3 of crystal oscillator X1 and one end of capacitor C15, pin 2 and pin 4 of crystal oscillator X1, the other end of capacitor C14 and The other end of the capacitor C15 is grounded.

The room temperature calibration unit 65 also includes an interface J6, the 8-pin of the interface J6 is connected to one end of the resistor R4, the other end of the resistor R4 is connected to the 37-pin of the chip U9, the 7-pin of the interface J6 is connected to one end of the resistor R5, and the other end of the resistor R5 is connected to the chip Pin 35 of U9, pin 2 of interface J6 is connected to one end of resistor R8, the other end of resistor R8 is connected to pin 36 of chip U9, pin 3 of interface J6 is connected to one end of resistor R7, the other end of resistor R7 is connected to pin 34 of chip U9 .

The room temperature calibration unit 65 also includes a chip U10, the model of the chip U10 is N700-58, and the 31 pin and the 32 pin of the chip U10 are connected with one end of the capacitor C51, one end of the capacitor C50, one end of the capacitor C49, one end of the capacitor C48, one end of the capacitor C47 and One end of capacitor C39 is connected to VDD_N700 power supply, the other end of capacitor C51, the other end of capacitor C50, the other end of capacitor C49, the other end of capacitor C48, the other end of capacitor C47 and the other end of capacitor C39 are grounded, and the 27 pin of chip U10 is connected to the end of capacitor C29 One end of the inductor L12 and the other end of the inductor L12 are connected to one end of the capacitor C30 and the radio frequency signal connector J2, and the other end of the capacitor C29 and the other end of the capacitor C30 are grounded.

Pin 21 of the chip U10 is connected to one end of a resistor R43, the other end of the resistor R43 is connected to one end of a resistor R44 and the base of the transistor Q4, the other end of the resistor R44 is connected to the emitter of the transistor Q4, and the collector of the transistor Q4 is connected to two One end of the pole tube LED7, the other end of the diode LED7 is connected to one end of the resistor R45, and the other end of the resistor R45 is connected to the VDD_MCU power supply; the 19 pin of the chip U10 is connected to one end of the capacitor C40 and the collector of the triode Q3, and the base of the triode Q3 is connected to the end of the resistor R42 One end of the resistor R41, the other end of the resistor R42, the emitter of the transistor Q3 and the other end of the capacitor C40 are grounded.

Pin 9 of the chip U10 is connected to the emitter of the triode Q5, the base of the triode Q5 is connected to one end of the resistor R24, the other end of the resistor R24 is connected to the VDD_1V8 power supply, and the collector of the triode Q5 is connected to one end of the resistor R23 and pin 30 of the chip U9. , the other end of the resistor R23 is connected to one end of the resistor R40, the other end of the resistor R40 is connected to the VDD_3V3 power supply, the pin 10 of the chip U10 is connected to the collector of the transistor Q6 and one end of the resistor R36, the base of the transistor Q6 is connected to one end of the resistor R25, and the other end of the resistor R36 One end and the other end of the resistor R25 are connected to the VDD_1V8 power supply, and the emitter of the transistor Q6 is connected to pin 29 of the chip U9.

The room temperature calibration unit 65 also includes a SIM card chip U8, the model of the SIM card chip U8 is M2M-QFN-8-5X6, and the 8 pins of the SIM card chip U8 are connected with one end of the TVS tube E3, one end of the capacitor C34 and 15 pins of the chip U10. pin, the other end of TVS tube E3 and the other end of capacitor C34 are grounded, the 7 pin of SIM card chip U8 is connected with one end of TVS tube E6, one end of capacitor C28 and one end of resistor R20, the other end of resistor R20 is connected to pin 12 of chip U10, TVS tube E6 The other end and the other end of the capacitor C28 are grounded, the 6-pin of the SIM card chip U8 is connected to one end of the TVS tube E5, one end of the capacitor C31 and one end of the resistor R33, the other end of the TVS tube E5 and the other end of the capacitor C31 are grounded, and the other end of the resistor R33 is connected to the chip U10 The 13 pins of the SIM card chip U8 are connected to one end of the TVS tube E4, one end of the capacitor C35 and one end of the resistor R34, the other end of the TVS tube E4 and the other end of the capacitor C35 are grounded, and the other end of the resistor R34 is connected to the 14 pins of the chip U10.

The room temperature calibration unit 65 also includes a voltage regulator chip U7, the model of the voltage regulator chip U7 is ME6214C33M5G, pin 1 of the voltage regulator chip U7 is connected to the VBAT power supply, pin 3 of the voltage regulator chip U7 is connected to one end of a resistor R3, and the other end of the resistor R3 Grounding, pin 5 of the voltage regulator chip U7 is connected to one end of the resistor R39 and one end of the TVS tube E7, and connected to the VDD_N700 power supply, the other end of the resistor R39 and the other end of the TVS tube E7 are grounded.

The communication method between the calibration device and the host computer management system is NB-IOT, and the communication method with the room temperature online monitoring device is 470MHZ. Those skilled in the art should understand that the above-mentioned communicative connection can be through Wired connection with data line or electric wire, etc., can also be wireless connection through 433MHz, LORA, WIFI, Bluetooth, or infrared. That is to say, the communication connection is not the focus of the present invention, the present invention No further limitation is imposed on the specific communication connection method.

The room temperature online monitoring device includes a room temperature collector and a room temperature sensor, and the room temperature collector includes a first temperature sensing module, a second short-distance wireless communication module, a second long-distance wireless communication module, a first data calculation module and a first data calculation module. The storage module, the room temperature sensor includes a second temperature sensing module, a third short-distance wireless communication module and a second data storage module.

The room temperature sensor and the room temperature collector can be connected through 470MHZ short-distance wireless communication, wherein the room temperature collector 31 is connected with the host computer management system 50 through NB-IOT communication. As shown in FIG. 3 , the calibration device is connected with the upper computer management system 50 through NB-IOT communication.

The host computer management system includes a data temporary storage module, a room temperature calibration calculation module, and a calibration room temperature storage application module, which has storage and room temperature sensor calibration functions, and can accept the standard room temperature measured by the calibration device 10 and the waiting room temperature measured by the room temperature online monitoring device. Calibrate the room temperature data, correct the temperature sensor to be calibrated through the calibration algorithm, and store the calibration data for future use.

The description of the present invention has been presented for purposes of illustration and description, but is not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and changes will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to better explain the principles and practical application of the invention, and to enable others of ordinary skill in the art to understand the invention and design various embodiments with various modifications as are suited to the particular use.

Claims

A device for online monitoring and calibration of indoor air temperature, characterized in that it includes a host computer management system, calibration equipment and room temperature online monitoring equipment;

The calibration equipment comprises a tripod head (9) and a straight arm head (10), and the tripod head (9) is integrated with a room temperature detection point positioning unit, a level measurement unit (4), a drive unit (5) and The cloud platform control unit (8), the quantity of horizontal measuring unit (4) is two, and two horizontal measuring units (4) are respectively installed in the direction parallel to the straight arm cloud platform (10) and perpendicular to the straight arm cloud platform (10). direction, the room temperature detection point positioning unit includes the first laser ranging unit (1), the second laser ranging unit (2), the third laser ranging unit (3), and the straight arm pan/tilt (10) is integrated with a standard A room temperature measurement unit (62) and a room temperature calibration unit (65).
A device for online monitoring and calibration of indoor air temperature as claimed in claim 1, characterized in that: said calibration equipment also includes a tripod support (15), the top of the tripod support (15) is equipped with a tripod vertical telescopic Bar (14), the top of tripod vertical expansion link (14) is equipped with tripod platform (9).
A device for on-line monitoring and calibration of indoor air temperature as claimed in claim 2, characterized in that: the straight arm platform (10) is fixed on the tripod platform (9), and the tripod vertical telescopic rod (14 ) is equipped with a rotary stepper motor (11).
A device for online monitoring and calibration of indoor air temperature according to claim 2, characterized in that: said straight-arm pan/tilt (10) includes a straight-arm pan/tilt telescopic rod (12) and a balance telescopic rod (13), The balance telescopic link (13) is installed on the top of the straight arm cloud platform telescopic link (12), and the straight arm cloud platform telescopic link (12) and the balance telescopic link (13) are synchronously reverse telescopic, to keep the equipment balance.
A device for online monitoring and calibration of indoor air temperature as claimed in claim 3, characterized in that: said rotary stepper motor (11) is installed perpendicular to the tripod head (9), capable of driving the tripod head ( 9) rotate with the straight-arm head (10) to change its angle, and simultaneously drive the straight-arm head telescopic rod (12) and the balance telescopic rod (13) to expand and contract synchronously to change the length of the straight-arm head (10). The table control unit (8) controls the drive unit (5) to drive the rotary stepper motor (11) to act.
The device for online monitoring and calibration of indoor air temperature according to claim 1, characterized in that: the standard room temperature measuring unit (62) integrates a platinum resistance digital display temperature sensor and a DS18B20 digital display temperature sensor.
The device for online monitoring and calibration of indoor air temperature according to claim 1, characterized in that: the room temperature calibration unit (65) includes a standard room temperature data storage module, a first short-distance wireless communication module and a first long-distance wireless communication module. communication module.
A device for online monitoring and calibration of indoor air temperature according to claim 1, characterized in that: the room temperature online monitoring equipment includes a room temperature collector and a room temperature sensor, and the room temperature collector includes a first temperature sensing module, a second A short-distance wireless communication module, a second long-distance wireless communication module, a first data calculation module and a first data storage module, the room temperature sensor includes a second temperature sensing module, a third short-distance wireless communication module and a second data storage module Group.
A device for online monitoring and calibration of indoor air temperature as claimed in claim 1, wherein the host computer management system includes a data temporary storage module, a room temperature calibration calculation module and a calibration room temperature storage application module, with storage, room temperature The sensor calibration function can accept the standard room temperature measured by the calibration device 10 and the room temperature data to be calibrated measured by the room temperature online monitoring device, correct the temperature sensor to be calibrated through the calibration algorithm, and store the calibration data for future use.
A device for online monitoring and calibration of indoor air temperature according to claim 8, characterized in that: the room temperature online monitoring equipment, calibration equipment and the upper computer management system communicate wirelessly or wiredly, and the room temperature collector and Communication between room temperature sensors.