A device for online monitoring and calibration of indoor air temperature

Abstract

The present application discloses a device for online monitoring and calibration of indoor air temperature, comprising a host computer management system, a calibration device and a room temperature online monitoring device; the calibration device comprises a tripod platform and a straight arm platform, the tripod platform is integrated with a room temperature detection point positioning unit, a horizontal measurement unit, a drive unit and a platform control unit, the number of the horizontal measurement units is two, and the two horizontal measurement units are respectively installed in a direction parallel to the straight arm platform and a direction perpendicular to the straight arm platform, the room temperature detection point positioning unit comprises a first laser ranging unit, a second laser ranging unit and a third laser ranging unit, and the straight arm platform is integrated with a standard room temperature measurement unit and a room temperature calibration unit.

Description

Technical Field

[0001] The present invention relates to the field of urban centralized heating, and more specifically to a calibration device for online monitoring equipment of indoor air temperature (hereinafter referred to as room temperature). Background Art

[0002] Online room temperature monitoring refers to a temperature measurement method that uses a digital thermometer installed in the indoor space of a building to continuously and automatically measure the room temperature, and transmits the measured room temperature data to the host computer management system through communication equipment for display and monitoring by management personnel.

[0003] Online room temperature monitoring equipment, such as switch-type devices, is an advanced IoT sensor that combines a light switch with a digital thermometer. By replacing an ordinary light switch within a building, it provides room temperature measurement points and a working power source, enabling continuous and automatic room temperature measurement. The measured data is then uploaded to a host computer management system for use.

[0004] Online room temperature monitoring has always suffered from low measurement accuracy. This drawback is primarily due to the fact that most monitoring devices use their installation location as the room temperature measurement point. Due to objective limitations, the installation location of these monitoring devices cannot be standardized or unified, resulting in large errors in temperature sampling. Central heating in my country primarily utilizes two cooling systems: radiators and floor radiant heating. Radiator systems use convection between the radiator and the indoor air, causing the room temperature to increase with height. The room temperature also varies with horizontal distance from the radiator, resulting in a large temperature gradient. Floor radiant heating systems radiate heat through the ground, primarily by radiation, causing the room temperature to decrease with height, resulting in an average surface temperature higher than the average room temperature.

[0005] Affected by changes in room temperature gradients, the number of online room temperature monitoring devices deployed in a building's indoor space, the location of measurement points, and the distance between the measurement points and heat sources, walls, and the ground will all affect measurement accuracy. There is a large error between the room temperature data measured by the monitoring equipment and the standard room temperature data, and there has been no feasible equipment and method for calibration. As a result, the room temperature data measured by a large number of online room temperature monitoring devices that have been put into use are not authoritative and cannot be used as evidence of the standard room temperature, resulting in huge waste.

[0006] In summary, online room temperature monitoring is of great significance to building energy conservation and emission reduction, and its application scope needs to be further expanded. How to reduce or eliminate the errors of the online room temperature monitoring system has become an urgent problem that needs to be solved. Summary of the Invention

[0007] The technical problem to be solved by the present invention is to address the above shortcomings and provide a device for online monitoring and calibration of indoor air temperature to solve the drift of the temperature sensor itself in the room temperature online monitoring equipment, the drift during the installation process, and the room temperature sensor sampling error caused by the thermal effect of the room temperature gradient change. By calibrating the room temperature collector, the accuracy of its room temperature collection can be improved. Whether it is a radiator or a floor radiant heating system, the room temperature online monitoring device can be calibrated using the present invention.

[0008] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0009] A device for online monitoring and calibration of indoor air temperature, comprising a host computer management system, a calibration device and an online room temperature monitoring device;

[0010] 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 horizontal measurement unit, a drive unit and a head control unit. There are two horizontal measurement units, which are respectively installed in a direction parallel to and perpendicular to the straight arm head. The room temperature detection point positioning unit includes a first laser ranging unit, a second laser ranging unit, and a third laser ranging unit. The straight arm head is integrated with a standard room temperature measurement unit and a room temperature calibration unit.

[0011] Furthermore, the calibration device also includes a tripod support frame, a tripod vertical telescopic rod is installed on the top of the tripod support frame, and a tripod pan head is installed on the top of the tripod vertical telescopic rod.

[0012] Furthermore, the straight arm platform is fixed on the tripod platform, and a rotary stepping motor is installed on the vertical telescopic rod of the tripod.

[0013] Furthermore, the straight arm pan-tilt platform includes a straight arm pan-tilt platform telescopic rod and a balancing telescopic rod. The balancing telescopic rod is installed above the straight arm pan-tilt platform telescopic rod. The straight arm pan-tilt platform telescopic rod and the balancing telescopic rod are synchronously telescoped in opposite directions to keep the equipment balanced.

[0014] Furthermore, the rotary stepper motor is installed perpendicular to the tripod head, and can drive the tripod head and the straight arm head to rotate and change their angles. At the same time, it can drive the telescopic rod and the balance telescopic rod of the straight arm head to extend and retract synchronously to change the length of the straight arm head. The head control unit controls the drive unit to drive the rotary stepper motor to move.

[0015] Furthermore, the standard room temperature measurement unit integrates a platinum resistance digital temperature sensor and a DS18B20 digital temperature sensor.

[0016] Furthermore, 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.

[0017] Furthermore, the room temperature online monitoring equipment includes a room temperature collector and a room temperature sensor. The room temperature collector includes a first temperature sensing module, a second short-range wireless communication module, a second long-range 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-range wireless communication module and a second data storage module.

[0018] Furthermore, the host computer management system includes a data temporary storage module, a room temperature calibration calculation module and a calibrated room temperature storage application module, which has storage and room temperature sensor calibration functions, can accept the standard room temperature measured by the calibration equipment 10 and the room temperature data to be calibrated measured by the room temperature online monitoring equipment, correct the temperature sensor to be calibrated through the calibration algorithm, and store the calibration data for backup.

[0019] Furthermore, the room temperature online monitoring device, calibration device and host computer management system communicate wirelessly or wiredly, and the room temperature collector and room temperature sensor communicate with each other.

[0020] The present invention adopts the above technical solution, which has the following technical effects compared with the prior art:

[0021] The high-precision room temperature data collected by the room temperature calibrator at the measurement point specified by the national standard is used as calibration data to calibrate the room temperature collector installed on the wall. Through calibration, the room temperature collector whose installation position deviates from the statutory monitoring point can be calibrated online, thereby eliminating the error of the room temperature online monitoring device and improving the accuracy.

[0022] 1. Whether it is a room temperature online monitoring system for radiators, floor radiant heating or other heating systems, by using the calibration of the present invention, standard or near-standard room temperature data can be obtained, which can expand the use scenarios and use environments of the room temperature online monitoring equipment, so as to facilitate the promotion and popularization of the room temperature online monitoring system.

[0023] 2. It can simplify the procedure of calibrating a room temperature online monitoring device to reduce the cost of calibrating the room temperature online monitoring device.

[0024] 3. It can speed up the calibration process of a room temperature sensor to reduce the calibration time of the room temperature sensor.

[0025] 4. The system can conveniently and quickly determine the number, location, and distance of the legally required indoor room temperature measurement points in the building, and measure the standard room temperature for use in calibrating the online room temperature monitoring device. The system minimizes user interference during the process of measuring the standard room temperature at the legally required measurement points.

[0026] 5. When the calibration system equipment is measuring the standard room temperature at the statutory measuring point, it can automatically identify and process the situation where the calibration system equipment deviates from the statutory measuring point position and distance in a timely manner to ensure the accuracy of the standard room temperature measurement.

[0027] 6. When measuring the standard room temperature at the legal measuring points, the calibration system equipment can identify and handle sudden temperature rises and drops caused by human factors, so as to maintain the seriousness of the standard room temperature measurement.

[0028] 7. It can prevent interference from thermal radiation such as sunlight during the measurement of standard room temperature at the statutory measuring point, which may affect the measurement accuracy of standard room temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly describes the drawings required for the specific embodiments or the description of the prior art. Similar elements or parts are generally identified by similar reference numerals throughout the drawings. Elements or parts in the drawings are not necessarily drawn to scale.

[0030] Figure 1 Schematic diagram of the top view structure of the pan / tilt platform in the monitoring and calibration device of the present invention;

[0031] Figure 2 A schematic side view of the structure of the pan / tilt platform in the monitoring and calibration device of the present invention;

[0032] Figure 3 This is a schematic diagram of the room center position measurement and positioning principle in the present invention;

[0033] Figures 4 to 16 A circuit diagram of the calibration device in the present invention;

[0034] Figure 17 This is a structural block diagram of the device for online monitoring and calibration of indoor air temperature in the present invention. DETAILED DESCRIPTION

[0035] Example 1, as Figures 1 to 3 As shown, a device for online monitoring and calibration of indoor air temperature includes a host computer management system, a calibration device and an online room temperature monitoring device.

[0036] 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 horizontal measurement unit 4, a driving unit 5 and a head control unit 8. There are two horizontal measurement units 4, and the two horizontal measurement units 4 are respectively installed in a direction parallel to the straight arm head 10 and a direction perpendicular to the straight arm head 10. The room temperature detection point positioning unit includes a first laser ranging unit 1, a second laser ranging unit 2, and a third laser ranging unit 3. The straight arm head 10 is integrated with a standard room temperature measurement unit 62 and a room temperature calibration unit 65.

[0037] The calibration equipment also includes a tripod support frame 15, a tripod vertical telescopic rod 14 is installed on the top of the tripod support frame 15, a tripod head 9 is installed on the top of the tripod vertical telescopic rod 14, a straight arm head 10 is fixed on the tripod head 9, a rotary stepping motor 11 is installed on the tripod vertical telescopic rod 14, the straight arm head 10 includes a straight arm head telescopic rod 12 and a balancing telescopic rod 13, the balancing telescopic rod 13 is installed above the straight arm head telescopic rod 12, the straight arm head telescopic rod 12 and the balancing telescopic rod 13 are synchronously telescoped in opposite directions to keep the equipment balanced.

[0038] The rotary stepper motor 11 is installed perpendicular to the tripod head 9, and can drive the tripod head 9 and the straight arm head 10 to rotate and change their angles. At the same time, it can drive the straight arm head telescopic rod 12 and the balance telescopic rod 13 to synchronously extend and retract to change the length of the straight arm head 10. The head control unit 8 controls the action of the rotary stepper motor 11.

[0039] The calibration device is placed at a point O' in the indoor space of a building, and the straight arm pan-tilt head 10 is adjusted to a given height of 1m-1.5m. The distances from O' to the three corners of the room are measured by the first laser ranging unit 1, the second laser ranging unit 2 and the third laser ranging unit 3, and the angles in the three directions are measured by the rotation of the stepping motor 11. The distance d and the angle β from O' to the legal measuring point O of the room temperature in the indoor space are calculated through trigonometric operations.

[0040] In order to achieve the statutory room temperature measurement point position, distance measurement and position provision, before positioning the statutory room temperature measurement point, it is necessary to use the horizontal measurement unit 4 to perform horizontal leveling, height measurement and adjustment on the straight arm pan-tilt platform 10. After positioning the statutory measurement point O, it is necessary to rotate the straight arm pan-tilt platform 10 by β degrees to point in the direction of point O, adjust the length of the straight arm pan-tilt platform telescopic rod 12, deploy the standard room temperature measurement unit 62 located on the straight arm pan-tilt platform to the measured statutory measurement point O, turn on the power to measure the standard room temperature, and in order to maintain the balance of the straight arm pan-tilt platform 10, a balancing telescopic rod 13 is added above the telescopic rod 12 of the straight arm pan-tilt platform, which is synchronously extended and retracted with the telescopic rod 12 of the straight arm pan-tilt platform.

[0041] The horizontal adjustment of the straight arm platform 10 is completed by manually operating the bidirectional level measuring unit on the tripod platform 9 and the leveling screws installed on the vertical telescopic rod 14 of the tripod.

[0042] The height measurement and adjustment of the straight arm platform are completed by the third laser ranging unit 3 (accuracy 1mm) and the vertical telescopic rod 14 installed on the vertical tripod platform 9 through electronically controlled automatic adjustment.

[0043] The measurement and positioning of the statutory room temperature measuring point is carried out by a laser ranging unit 1 horizontally mounted on the tripod platform and a vertically mounted rotary stepping motor 11 (resolution 0.05°), which is automatically adjusted by electronic control and manually confirmed at the three angles by a remote control. After measuring the distances a, b, c and angles of the three angles, the rotation angle β and distance d from the standard room temperature measuring unit 62 to the statutory room temperature measuring point O of the room are calculated. The platform control unit 8 converts the calculated angle into the number of steps of motor rotation and turns the end of the straight arm platform 10 on which the standard room temperature measuring unit 62 is mounted toward the direction of the statutory room temperature measuring point O.

[0044] The laser ranging unit 2 and the telescopic rod 12 horizontally mounted on the straight arm pan-tilt platform 10 adjust the distance d between the standard room temperature measuring unit 62 mounted at one end of the straight arm pan-tilt platform and the statutory room temperature measuring point O, and deploy the standard room temperature measuring unit 62 to the statutory room temperature measuring point position to perform statutory room temperature measurement.

[0045] Optionally, the control measurement, measurement data calculation, remote control communication, data display and other tasks of the laser rangefinder and the electric telescopic rod are all completed by the calibration device control unit installed on the tripod head.

[0046] By operating the straight-arm pan-tilt telescopic rod 12 of the calibration device, the standard room temperature measurement unit 62 can be deployed at a statutory measuring point above furniture with a height of less than 1.5m. During the standard room temperature measurement process, interference with the user's normal work and life order can be avoided or reduced.

[0047] In addition, if Figure 17 As shown, preferably, the standard room temperature measurement unit 62 of the calibration device integrates a platinum resistance digital temperature sensor and a DS18B20 digital temperature sensor, with a measurement accuracy of ±0.15°C, providing reliable high-precision standard room temperature data for calibrating the room temperature online monitoring device.

[0048] Preferably, the standard room temperature measurement unit 62 can identify the horizontal and vertical displacements in real time through the built-in G-sensor and the data changes of the first laser ranging unit 1, the second laser ranging unit 2, and the third laser ranging unit 3, and report them to the host computer management system for processing to ensure the accuracy of the standard room temperature measurement results.

[0049] Those skilled in the art should understand that the standard room temperature measurement unit 62 can, but is not limited to, perform displacement identification and judgment through a built-in G-sensor and a laser locator, and its displacement judgment method can also be implemented as other methods as needed.

[0050] Furthermore, the heat shield housing of the standard room temperature measurement unit 62 utilizes a louvered, radiation-proof ventilation hood structure constructed from high-quality UV-resistant materials to minimize measurement errors caused by intense light. Specifically, a DS18B20 digital temperature sensor is installed on the top of the heat shield housing to identify any obstruction of the ventilation hood and any human intervention in measurement results, and report this to the host computer management system for processing, ensuring the integrity of the measurement data.

[0051] 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.

[0052] like Figures 4 to 16 As shown, the room temperature calibration unit 65 includes a chip U9, the model of the chip U9 is R5F100FE, the 5th pin of the chip U9 is connected to one end of the resistor R6, one end of the crystal oscillator X2 and one end of the capacitor C32, the 4th pin of the chip U9 is connected to the other end of the resistor R6 and one end of the resistor R9, the other end of the resistor R9 is connected to the other end of the crystal oscillator X2 and one end of the capacitor C4, the other end of the capacitor C32 and the other end of the capacitor C4 are grounded, the 8th pin of the chip U9 is connected to one end of the resistor R10, the 3rd pin of the crystal oscillator X3 and one end of the capacitor C25, the 7th pin of the chip U9 is connected to the other end of the resistor R10, the 1st pin of the crystal oscillator X3 and one end of the capacitor C26, the 2nd and 4th pins of the crystal oscillator X3, the other end of the capacitor C26 and the other end of the capacitor C25 are grounded.

[0053] Pin 41 of the chip U9 is connected to one end of the resistor R19, the other end of the resistor R19 is connected to one end of the light-emitting diode LED1, and the other end of the light-emitting diode LED1 is grounded. Pin 33 of the chip U9 is connected to one end of the resistor R21, the other end of the resistor R21 is connected to one end of the light-emitting diode LED3, and the other end of the light-emitting diode LED3 is grounded. Pin 6 of the chip U9 is connected to one end of the resistor R16, one end of the button S2 and one end of the capacitor C23. The other end of the resistor R6 is connected to the VDD_MCU power supply, and the other end of the capacitor C23 and the other end of the button S2 are grounded.

[0054] The room temperature calibration unit 65 also includes a chip U1, the model of the chip U1 is BS813C-1, pin 1 of the chip U1 is connected to one end of the capacitor C8 and contacts the detection point TOUCH_1, pin 3 of the chip U1 is connected to one end of the capacitor C6 and contacts the detection point TOUCH_3, the other end of the capacitor C6 and the other end of the capacitor C8 are grounded, pin 4 of the chip U1 is connected to one end of the resistor R37, the other end of the resistor R37 is connected to pin 21 of the chip U9, pin 6 of the chip U1 is connected to one end of the resistor R18, the other end of the resistor R18 is connected to pin 16 of the chip U9, pin 8 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.

[0055] The room temperature calibration unit 65 also includes a chip U2. The model of the chip U2 is DS18B20. Pin 2 of the chip U2 is connected to pin 32 of the chip U9 and one end of the resistor R22. The other end of the resistor R22 and pin 3 of the chip U2 are connected to the VDD_SENSOR power supply.

[0056] The room temperature calibration unit 65 also includes a chip U4, the model of which is FLASH SOIC8. Pin 1 of chip U4 is connected to pin 17 of chip U9, pin 2 of chip U4 is connected to pin 18 of chip U9, pin 3 of chip U4 is connected to the 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, pins 2 and 8 of chip U4 are connected to one end of capacitor C1 and to the VDD_MCU power supply, and the other end of capacitor C1 is grounded.

[0057] The room temperature calibration unit 65 also includes a toggle switch S3, the model of the toggle switch S3 is K3-1290S, pin 1 of the toggle switch S3 is connected to one end of the resistor R15, and the other end of the resistor R15 is connected to the VDD_MCU power supply, pin 2 of the toggle switch S3 is connected to pin 12 of the chip U9, pin 3 of the toggle switch S3 is connected to one end of the resistor R1, and the other end of the resistor R1 is grounded, pin 15 of the chip U9 is connected to one end of the resistor R47 and one end of the resistor R46, the other end of the resistor R46 is connected to the VDD_MCU power supply, and the other end of the resistor R47 is grounded, 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.

[0058] The room temperature calibration unit 65 also includes a chip U3, the model of the chip U3 is CMT2300A, the 7th pin of the chip U3 is connected to one end of the capacitor C16 and is connected to the VDD_RF power supply, the other end of the capacitor C16 is grounded, the 9th pin of the chip U3 is connected to one end of the resistor R26 and one end of the capacitor C13, the other end of the capacitor C13 is grounded, the other end of the resistor R26 is connected to the 26th pin of the chip U9, the 10th pin of the chip U3 is connected to one end of the resistor R38, one end of the resistor R27 and one end of the 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, pin 11 of chip U3 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, pin 12 of chip U3 is connected to one end of resistor R29 and one end of capacitor C10, the other end of capacitor C10 is grounded, and the other end of resistor R29 is connected to pin 24 of chip U9.

[0059] Pin 4 of the chip U3 is connected to 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 is 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 are grounded. 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 one end of the inductor L2. The other end of the inductor L2 is connected to one end of the capacitor C20 and one end of the capacitor C44. The other end of the capacitor C20 is grounded. The other end of the capacitor C44 is connected to one end of the inductor L4, one end of the capacitor C22 and one end of the inductor L3. The other end of the inductor L4 is connected to one end of the capacitor C21 and one end of the inductor L5. End, the other end of capacitor C21 is grounded, the other end of inductor L5 is connected to one end of capacitor C45 and one end of TVS tube E2, and is connected to the ANT_RF detection point, the other end of capacitor C45 and the other end of TVS tube E2 are grounded, pin 2 of chip U3 is connected to one end of inductor L6, one end of inductor L7 and the other end of capacitor C22, the other end of 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, the other end of resistor R31 is connected to pin 23 of chip U9, pin 15 of chip U3 is connected to one end of resistor R32, and the other end of resistor R32 is connected to pin 22 of chip U9.

[0060] Pin 13 of the chip U3 is connected to pin 1 of the crystal oscillator X1 and one end of the capacitor C14, pin 14 of the chip U3 is connected to pin 3 of the crystal oscillator X1 and one end of the capacitor C15, and pins 2 and 4 of the crystal oscillator X1, the other end of the capacitor C14 and the other end of the capacitor C15 are grounded.

[0061] The room temperature calibration unit 65 also includes an interface J6, wherein pin 8 of the interface J6 is connected to one end of the resistor R4, and the other end of the resistor R4 is connected to pin 37 of the chip U9, pin 7 of the interface J6 is connected to one end of the resistor R5, and the other end of the resistor R5 is connected to pin 35 of the chip U9, pin 2 of the interface J6 is connected to one end of the resistor R8, and the other end of the resistor R8 is connected to pin 36 of the chip U9, and pin 3 of the interface J6 is connected to one end of the resistor R7, and the other end of the resistor R7 is connected to pin 34 of the chip U9.

[0062] The room temperature calibration unit 65 also includes a chip U10, the model of which is N700-58. Pins 31 and 32 of the chip U10 are connected to one end of a capacitor C51, one end of a capacitor C50, one end of a capacitor C49, one end of a capacitor C48, one end of a capacitor C47, and one end of a capacitor C39, and are connected to the VDD_N700 power supply. The other ends of the capacitors C51, C50, C49, C48, C47, and C39 are grounded. Pin 27 of the chip U10 is connected to one end of a capacitor C29 and one end of an inductor L12. The other end of the inductor L12 is connected to one end of a capacitor C30 and the RF signal connector J2. The other ends of the capacitors C29 and C30 are grounded.

[0063] Pin 21 of the chip U10 is connected to one end of the resistor R43, the other end of the resistor R43 is connected to one end of the resistor R44 and the base of the transistor Q4, the other end of the resistor R44 and the emitter of the transistor Q4 are grounded, the collector of the transistor Q4 is connected to one end of the diode 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; pin 19 of the chip U10 is connected to one end of the capacitor C40 and the collector of the transistor Q3, the base of the transistor Q3 is connected to one end of the resistor R42 and 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.

[0064] Pin 9 of the chip U10 is connected to the emitter of the transistor Q5, the base of the transistor 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, the collector of the transistor 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, 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, the other end of the resistor R36 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.

[0065] 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. The 8th pin of the SIM card chip U8 is connected to one end of the TVS tube E3, one end of the capacitor C34 and the 15th pin of the chip U10. The other end of the TVS tube E3 and the other end of the capacitor C34 are grounded. The 7th pin of the SIM card chip U8 is connected to one end of the TVS tube E6, one end of the capacitor C28 and one end of the resistor R20. The other end of the resistor R20 is connected to the 12th pin of the chip U10. The TVS tube E6 The other end and the other end of capacitor C28 are grounded. Pin 6 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. The other end of the resistor R33 is connected to pin 13 of the chip U10. Pin 3 of the SIM card chip U8 is 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. The other end of the resistor R34 is connected to pin 14 of the chip U10.

[0066] 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 the resistor R3, and the other end of the resistor R3 is grounded. 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 is 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.

[0067] 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 a wired connection connected by a data cable, an electric wire, etc., or it can be a wireless connection connected by 433MHz, LORA, WIFI, Bluetooth, or infrared, etc. In other words, the communicative connection is not the focus of the present invention, and the present invention does not impose further restrictions on the specific communication connection method.

[0068] The room temperature online monitoring equipment includes a room temperature collector and a room temperature sensor. The room temperature collector includes a first temperature sensing module, a second short-range wireless communication module, a second long-range 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-range wireless communication module and a second data storage module.

[0069] The room temperature sensor and the room temperature collector can be connected via 470MHZ short-range wireless communication, wherein the room temperature collector 31 is connected to the host computer management system 50 via NB-IOT communication. Figure 3As shown, the calibration device is connected to the host computer management system 50 via NB-IOT communication.

[0070] The host computer management system includes a data temporary storage module, a room temperature calibration calculation module and a calibrated room temperature storage application module, which has storage and room temperature sensor calibration functions. It can accept the standard room temperature measured by the calibration equipment 10 and the room temperature data to be calibrated measured by the room temperature online monitoring equipment, correct the temperature sensor to be calibrated through the calibration algorithm, and store the calibration data for backup.

[0071] The description of the present invention has been presented for purposes of illustration and description and is not intended to be exhaustive or to limit the invention to the form disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles of the invention and its practical application and to enable those skilled in the art to understand the invention and design various embodiments with various modifications as are suited for specific applications.

Claims

1. A device for online monitoring and calibration of indoor air temperature, characterized by: Including host computer management system, calibration equipment and room temperature online monitoring equipment; The calibration device comprises a tripod platform (9) and a straight arm platform (10), wherein the tripod platform (9) is integrated with a room temperature detection point positioning unit, a level measurement unit (4), a driving unit (5) and a platform control unit (8), wherein the number of the level measurement units (4) is two, and the two level measurement units (4) are respectively installed in a direction parallel to the straight arm platform (10) and a direction perpendicular to the straight arm platform (10), wherein 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 the straight arm platform (10) is integrated with a standard room temperature measurement unit (62) and a room temperature calibration unit (65); wherein the calibration device The device further comprises a tripod support frame (15), a tripod vertical telescopic rod (14) is installed on the top of the tripod support frame (15), and a tripod platform (9) is installed on the top of the tripod vertical telescopic rod (14); a rotary stepping motor (11) is installed on the tripod vertical telescopic rod (14); the distances from the position where the calibration device is placed to the three corners of the room are measured by the first laser ranging unit (1), the second laser ranging unit (2) and the third laser ranging unit, and the angles in the three directions are measured by the rotation of the rotary stepping motor (11); the distances and angles from the position where the calibration device is placed to the statutory measuring point of the room temperature are calculated by trigonometric calculation, and the room temperature is measured at the statutory measuring point; The heat shielding shell of the standard room temperature measurement unit (62) adopts a louvered radiation-proof ventilation cover structure and uses anti-ultraviolet material; a DS18B20 digital display temperature sensor is installed on the top of the heat shielding shell to identify the behavior of blocking the louvered radiation-proof ventilation cover and human intervention in the measurement results; The room temperature calibration unit (65) comprises a standard room temperature data storage module, a first short-range wireless communication module and a first long-range wireless communication module; The room temperature calibration unit (65) includes a chip U9, the model of the chip U9 is R5F100FE, the 5th pin of the chip U9 is connected to one end of the resistor R6, one end of the crystal oscillator X2 and one end of the capacitor C32, the 4th pin of the chip U9 is connected to the other end of the resistor R6 and one end of the resistor R9, the other end of the resistor R9 is connected to the other end of the crystal oscillator X2 and one end of the capacitor C4, the other end of the capacitor C32 and the other end of the capacitor C4 are grounded, the 8th pin of the chip U9 is connected to one end of the resistor R10, the 3rd pin of the crystal oscillator X3 and one end of the capacitor C25, the 7th pin of the chip U9 is connected to the other end of the resistor R10, the 1st pin of the crystal oscillator X3 and one end of the capacitor C26, the 2nd and 4th pins 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, and 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, the other end of the resistor R21 is connected to one end of a light-emitting diode LED3, and the other end of the light-emitting diode LED3 is grounded. Pin 6 of the chip U9 is connected to one end of a resistor R16, one end of a button S2, and one end of a capacitor C23. The other end of the resistor R6 is connected to the VDD_MCU power supply, and the other end of the capacitor C23 and the other end of the 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 1st pin of the chip U1 is connected to one end of the capacitor C8 and contacts the detection point TOUCH_1, the 3rd pin of the chip U1 is connected to one end of the capacitor C6 and contacts the detection point TOUCH_3, the other end of the capacitor C6 and the other end of the capacitor C8 are grounded, the 4th pin of the chip U1 is connected to one end of the resistor R37, the other end of the resistor R37 is connected to the 21st pin of the chip U9, the 6th pin of the chip U1 is connected to one end of the resistor R18, the other end of the resistor R18 is connected to the 16th pin of the chip U9, the 8th 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) further includes a chip U2, the model of the chip U2 is DS18B20, the 2nd pin of the chip U2 is connected to the 32nd pin of the chip U9 and one end of the resistor R22, and the other end of the resistor R22 and the 3rd 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 FLASHSOIC8, the 1st pin of the chip U4 is connected to the 17th pin of the chip U9, the 2nd pin of the chip U4 is connected to the 18th pin of the chip U9, the 3rd pin of the chip U4 is connected to the VDD_MCU power supply, the 5th pin of the chip U4 is connected to the 19th pin of the chip U9, the 6th pin of the chip U4 is connected to the 20th pin of the chip U9, the 2nd pin and the 8th pin of the chip U4 are connected to one end of the capacitor C1 and connected to the VDD_MCU power supply, and the other end of the capacitor C1 is grounded; The room temperature calibration unit (65) further includes a toggle switch S3, the model of the toggle switch S3 is K3-1290S, 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 a VDD_MCU power supply, pin 2 of the toggle switch S3 is connected to pin 12 of the chip U9, pin 3 of the toggle switch S3 is connected to one end of a resistor R1, the other end of the resistor R1 is grounded, pin 15 of the chip U9 is connected to one end of a resistor R47 and one end of a resistor R46, the other end of the resistor R46 is connected to a VDD_MCU power supply, the other end of the resistor R47 is grounded, pin 13 of the chip U9 is connected to one end of a resistor R17 and one end of a resistor R14, the other end of the resistor R14 is connected to a VDD_MCU power supply, and the other end of the resistor R17 is grounded; The room temperature calibration unit (65) further includes a chip U3, the model of the chip U3 is CMT2300A, the 7th pin of the chip U3 is connected to one end of the capacitor C16 and is connected to the VDD_RF power supply, the other end of the capacitor C16 is grounded, the 9th pin of the chip U3 is connected to one end of the resistor R26 and one end of the capacitor C13, the other end of the capacitor C13 is grounded, the other end of the resistor R26 is connected to the 26th pin of the chip U9, and the 10th pin of the chip U3 is connected to one end of the resistor R38, one end of the resistor R27 and one end of the 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, pin 11 of chip U3 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, pin 12 of chip U3 is connected to one end of resistor R29 and one end of capacitor C10, the other end of capacitor C10 is grounded, and the other end of resistor R29 is connected to pin 24 of chip U9; Pin 4 of the chip U3 is connected to 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 is 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 are grounded. 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 one end of the inductor L2. The other end of the inductor L2 is connected to one end of the capacitor C20 and one end of the capacitor C44. The other end of the capacitor C20 is grounded. The other end of the capacitor C44 is connected to one end of the inductor L4, one end of the capacitor C22 and one end of the inductor L3. The other end of the inductor L4 is connected to one end of the capacitor C21 and one end of the inductor L5. end, the other end of capacitor C21 is grounded, the other end of inductor L5 is connected to one end of capacitor C45 and one end of TVS tube E2, and connected to the ANT_RF detection point, the other end of capacitor C45 and the other end of TVS tube E2 are grounded, pin 2 of chip U3 is connected to one end of inductor L6, one end of inductor L7 and the other end of capacitor C22, the other end of 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, the other end of resistor R31 is connected to pin 23 of chip U9, pin 15 of chip U3 is connected to one end of resistor R32, and the other end of resistor R32 is connected to pin 22 of chip U9; Pin 13 of the chip U3 is connected to pin 1 of the crystal oscillator X1 and one end of the capacitor C14, pin 14 of the chip U3 is connected to pin 3 of the crystal oscillator X1 and one end of the capacitor C15, and pins 2 and 4 of the crystal oscillator X1, the other end of the capacitor C14, and the other end of the capacitor C15 are grounded; The room temperature calibration unit (65) further includes an interface J6, wherein pin 8 of the interface J6 is connected to one end of a resistor R4, and the other end of the resistor R4 is connected to pin 37 of a chip U9, pin 7 of the interface J6 is connected to one end of a resistor R5, and the other end of the resistor R5 is connected to pin 35 of a chip U9, pin 2 of the interface J6 is connected to one end of a resistor R8, and the other end of the resistor R8 is connected to pin 36 of a chip U9, and pin 3 of the interface J6 is connected to one end of a resistor R7, and the other end of the resistor R7 is connected to pin 34 of a chip U9; The room temperature calibration unit (65) further includes a chip U10, the model of the chip U10 is N700-58, the 31st and 32nd pins of the chip U10 are connected to one end of a capacitor C51, one end of a capacitor C50, one end of a capacitor C49, one end of a capacitor C48, one end of a capacitor C47 and one end of a capacitor C39, and are connected to the VDD_N700 power supply, the other end of the capacitor C51, the other end of the capacitor C50, the other end of the capacitor C49, the other end of the capacitor C48, the other end of the capacitor C47 and the other end of the capacitor C39 are grounded, the 27th pin of the chip U10 is connected to one end of a capacitor C29 and one end of an inductor L12, the other end of the inductor L12 is connected to one end of a capacitor C30 and a radio frequency signal connector J2, 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 and the emitter of the transistor Q4 are grounded, the collector of the transistor Q4 is connected to one end of a diode LED7, the other end of the diode LED7 is connected to one end of a resistor R45, and the other end of the resistor R45 is connected to the VDD_MCU power supply; pin 19 of the chip U10 is connected to one end of a capacitor C40 and the collector of the transistor Q3, the base of the transistor Q3 is connected to one end of a resistor R42 and one end of a 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 transistor Q5, the base of the transistor 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, the collector of the transistor 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, 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, the other end of the resistor R36 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) further includes a SIM card chip U8, the model of the SIM card chip U8 is M2M-QFN-8-5X6, the 8th pin of the SIM card chip U8 is connected to one end of the TVS tube E3, one end of the capacitor C34 and the 15th pin of the chip U10, the other end of the TVS tube E3 and the other end of the capacitor C34 are grounded, the 7th pin of the SIM card chip U8 is connected to one end of the TVS tube E6, one end of the capacitor C28 and one end of the resistor R20, the other end of the resistor R20 is connected to the 12th pin of the chip U10, the TVS tube E3 is connected to the 15th pin of the chip U10, and the other end of the TVS tube E3 is connected to the 15th pin of the chip U10. Pin 6 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. The other end of the resistor R33 is connected to pin 13 of the chip U10. Pin 3 of the SIM card chip U8 is 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. The other end of the resistor R34 is connected to pin 14 of the chip U10. The room temperature calibration unit (65) further includes a voltage stabilizing chip U7, the model of the voltage stabilizing chip U7 is ME6214C33M5G, pin 1 of the voltage stabilizing chip U7 is connected to the VBAT power supply, pin 3 of the voltage stabilizing chip U7 is connected to one end of the resistor R3, the other end of the resistor R3 is grounded, pin 5 of the voltage stabilizing chip U7 is connected to one end of the resistor R39 and one end of the TVS tube E7, and is 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 room temperature online monitoring device includes a room temperature collector and a room temperature sensor, the room temperature collector includes a first temperature sensing module, a second short-range wireless communication module, a second long-range wireless communication module, a first data calculation module and a first data storage module, and the room temperature sensor includes a second temperature sensing module, a third short-range wireless communication module and a second data storage module; The host computer management system includes a data temporary storage module, a room temperature calibration calculation module and a calibrated room temperature storage application module, which has storage and room temperature sensor calibration functions, can accept the standard room temperature measured by the calibration equipment and the room temperature data to be calibrated measured by the room temperature online monitoring equipment, correct the temperature sensor to be calibrated through the calibration algorithm, and store the calibration data for future use.

2. The device for online monitoring and calibration of indoor air temperature according to claim 1, characterized in that: The straight arm platform (10) is fixed on the tripod platform (9).

3. The device for online monitoring and calibration of indoor air temperature according to claim 1, characterized in that: The straight arm platform (10) comprises a straight arm platform telescopic rod (12) and a balancing telescopic rod (13), wherein the balancing telescopic rod (13) is mounted above the straight arm platform telescopic rod (12), and the straight arm platform telescopic rod (12) and the balancing telescopic rod (13) are synchronously extended and retracted in opposite directions to maintain the balance of the device.

4. The device for online monitoring and calibration of indoor air temperature according to claim 2, characterized in that: The rotary stepper motor (11) is installed perpendicular to the tripod platform (9), and can drive the tripod platform (9) and the straight arm platform (10) to rotate and change their angles, and can also drive the straight arm platform telescopic rod (12) and the balance telescopic rod (13) to synchronously extend and retract to change the length of the straight arm platform (10). The platform control unit (8) controls the driving unit (5) to drive the rotary stepper motor (11) to operate.

5. The device for online monitoring and calibration of indoor air temperature according to claim 1, characterized in that: The room temperature online monitoring equipment, the calibration equipment and the host computer management system communicate with each other wirelessly or wiredly, and the room temperature collector and the room temperature sensor communicate with each other.

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