Room temperature collector

Abstract

The utility model provides a room temperature collector. The room temperature collector comprises a shell, the shell is provided with a mounting hole and a display screen, the display screen is arranged on a panel of the shell, and the panel of the shell is further provided with a power jack. The problem that an existing indoor collector is inaccurate in indoor temperature detection can be solved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of heat supply management, and in particular to a room temperature collector. Background Art

[0002] In the cold winter, heating can provide a warm environment indoors, allowing people to avoid the discomfort caused by low temperatures, such as cold hands and feet, joint pain, etc. During the heating process, there may be insufficient heating on some floors, or the heating temperature on some floors may be too high. Insufficient heating will affect the user's comfort, and too high heating temperature will cause energy waste. In order to detect the above situation in time, a room temperature collector can be set to monitor the indoor temperature in real time and upload it to the monitoring center, so that relevant departments can understand the indoor temperature in real time. When the indoor temperature is too high or too low, the relevant department managers can solve it in time.

[0003] Most of the existing room temperature collectors are table-mounted, which are easy to lose, and if the user places them in the wrong position, it will lead to inaccurate indoor temperature detection. Utility Model Content

[0004] The disclosed embodiment provides a room temperature collector to solve the problem that the existing indoor collector cannot accurately detect the indoor temperature.

[0005] The present disclosure provides a room temperature collector, comprising:

[0006] A housing, wherein a mounting hole is provided on the housing,

[0007] A display screen is arranged on a panel of the housing,

[0008] A power socket is also provided on the panel of the shell.

[0009] In an exemplary embodiment of the present disclosure,

[0010] The housing is provided with a temperature acquisition circuit, a humidity acquisition circuit, a first amplification circuit and a first subtraction circuit.

[0011] The temperature acquisition circuit is used to detect the indoor temperature, and the humidity acquisition circuit is used to collect the indoor humidity. The output end of the temperature acquisition circuit is connected to the first input end of the first subtraction circuit, and the output of the humidity acquisition circuit is connected to the second input end of the first subtraction circuit through the first amplifier circuit. The output end of the first subtraction circuit is used to output the indoor temperature.

[0012] In an exemplary embodiment of the present disclosure,

[0013] The temperature acquisition circuit includes a bridge circuit and a second subtraction circuit connected in sequence.

[0014] The bridge circuit includes a thermistor, and two output ends of the bridge circuit are respectively connected to two input ends of the second subtraction circuit, and the output end of the second subtraction circuit is the output end of the temperature acquisition circuit.

[0015] In an exemplary embodiment of the present disclosure,

[0016] The humidity collection circuit comprises a humidity sensor and a second amplifier circuit connected in sequence, and the output end of the second amplifier circuit is the output end of the humidity collection circuit.

[0017] In an exemplary embodiment of the present disclosure,

[0018] The backlight control circuit includes an operational amplifier U3A, a switch tube Q1, a resistor R17 and a resistor R19.

[0019] The non-inverting input terminal of the operational amplifier U3A is connected to the power supply, the output terminal of the operational amplifier U3A is connected to the control terminal of the switch tube Q1, the first terminal of the switch tube Q1 is connected in series with the backlight, the second terminal of the switch tube Q1 is grounded through a resistor R19, and the second terminal of the switch tube Q1 is connected to the inverting input terminal of the operational amplifier U3A through a resistor R17.

[0020] The working principle and beneficial effects of the room temperature collector provided by the embodiment of the present disclosure are as follows:

[0021] In the disclosed embodiment, a mounting hole is provided on the housing of the room temperature collector, so that the room temperature collector can be fixedly mounted on the wall to avoid loss. At the same time, the panel of the housing is consistent with the size of the existing switch panel, and a power socket is provided on the panel of the housing, so that the room temperature collector can be installed at the position of the original switch panel without destroying the original decoration style of the house. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0023] Figure 1 is a circuit schematic diagram of a room temperature collector provided by an embodiment of the present disclosure;

[0024] Figure 2 is a schematic diagram of a humidity collection circuit provided by an embodiment of the present disclosure;

[0025] Figure 3 It is a schematic diagram of a backlight control circuit provided in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0026] In order to enable people in the technical field to better understand the present solution, the technical solution in the embodiment of the present solution will be clearly described below in conjunction with the drawings in the embodiment of the present solution. Obviously, the described embodiment is an embodiment of a part of the present solution, not all of the embodiments. Based on the embodiments in the present solution, all other embodiments obtained by ordinary technicians in the field without creative work should fall within the scope of protection of the present solution.

[0027] The term "including" and any other variations in the specification and claims of this solution and the above drawings mean "including but not limited to", and is intended to cover non-exclusive inclusions and is not limited to the examples listed in the text. In addition, the terms "first" and "second" are used to distinguish different objects, not to describe a specific order.

[0028] The following is a detailed description of the implementation of the present disclosure in conjunction with the specific drawings:

[0029] The room temperature collector includes:

[0030] The housing is provided with a mounting hole.

[0031] A display screen is arranged on a panel of the housing,

[0032] A power socket is also provided on the panel of the shell.

[0033] In the disclosed embodiment, a mounting hole is provided on the housing of the room temperature collector, so that the room temperature collector can be fixedly mounted on the wall to avoid loss. At the same time, the panel of the housing is consistent with the size of the existing switch panel, and a power socket is provided on the panel of the housing, so that the room temperature collector can be installed at the position of the original switch panel without destroying the decoration style of the house.

[0034] Reference Figure 1 In an exemplary embodiment of the present disclosure, a temperature acquisition circuit, a humidity acquisition circuit, a first amplification circuit and a first subtraction circuit are arranged in the housing.

[0035] The temperature acquisition circuit is used to detect the indoor temperature, and the humidity acquisition circuit is used to collect the indoor humidity. The output end of the temperature acquisition circuit is connected to the first input end of the first subtraction circuit, and the output of the humidity acquisition circuit is connected to the second input end of the first subtraction circuit through the first amplifier circuit. The output end of the first subtraction circuit is used to output the indoor temperature.

[0036] In this embodiment, the temperature acquisition circuit can collect the indoor temperature in real time and upload it to the monitoring center through wireless communication methods such as NB-IoT, so that relevant departments can understand the indoor temperature in real time; at the same time, the humidity acquisition circuit can collect the indoor humidity in real time and display it on the display screen, so that users can understand the indoor humidity in real time.

[0037] Considering that the working performance of the temperature acquisition element will be affected by humidity, when the indoor humidity is high or the user installs the room temperature collector near the humidifier, the humidity near the indoor collector will be too high, thereby affecting the accurate collection of the indoor temperature. Therefore, this embodiment provides a first subtraction circuit, and connects the output end of the humidity acquisition circuit to the second input end of the first subtraction circuit through a first amplifier circuit. The humidity acquisition circuit serves as a compensation circuit and can adjust the detection result of the indoor temperature according to the humidity.

[0038] Specifically, resistor R13, resistor R12 and operational amplifier U2B constitute a first amplification circuit, resistor R16, resistor R7 and operational amplifier U1B constitute a first subtraction circuit, and the first subtraction circuit is used to output the difference between the output voltage of the temperature acquisition circuit and the output voltage of the first amplification circuit, and the difference can represent the indoor temperature. When the indoor humidity is high, the resistance of the temperature acquisition element increases, and the output voltage of the temperature acquisition circuit and the output voltage of the humidity acquisition circuit increase at the same time, which can offset the effect of the humidity increase on the output voltage of the temperature acquisition circuit.

[0039] Reference Figure 1 In an exemplary embodiment of the present disclosure, the temperature acquisition circuit includes a bridge circuit and a second subtraction circuit connected in sequence.

[0040] The bridge circuit includes a thermistor, and two output ends of the bridge circuit are respectively connected to two input ends of the second subtraction circuit, and the output end of the second subtraction circuit is the output end of the temperature acquisition circuit.

[0041] In this embodiment, a specific implementation form of the temperature acquisition circuit is provided, wherein the resistor R1, thermistor R2, resistor R3 and resistor R4 form a bridge circuit, the resistance value of thermistor R2 changes with the change of temperature, causing the output voltage of the bridge circuit to change with the change of temperature, therefore, the temperature change can be obtained by detecting the output voltage of the bridge circuit.

[0042] Reference Figure 2 In an exemplary embodiment of the present disclosure, the humidity collection circuit includes a humidity sensor and a second amplifier circuit connected in sequence, and the output end of the second amplifier circuit is the output end of the humidity collection circuit.

[0043] In this embodiment, a specific implementation form of the humidity acquisition circuit is provided. The humidity sensor is used to convert the indoor humidity into a voltage signal output, and the resistor R10, the resistor R8 and the operational amplifier U2A constitute a second amplifier circuit. The voltage signal output by the humidity sensor is amplified to a set voltage level by the second amplifier circuit, so as to facilitate accurate reading of the subsequent circuit.

[0044] Reference Figure 3 In an exemplary embodiment of the present disclosure, a backlight control circuit is also included, and the backlight control circuit includes an operational amplifier U3A, a switch tube Q1, a resistor R17 and a resistor R19,

[0045] The non-inverting input terminal of the operational amplifier U3A is connected to the power supply, the output terminal of the operational amplifier U3A is connected to the control terminal of the switch tube Q1, the first terminal of the switch tube Q1 is connected in series with the backlight, the second terminal of the switch tube Q1 is grounded through the resistor R19, and the second terminal of the switch tube Q1 is connected to the inverting input terminal of the operational amplifier U3A through the resistor R17.

[0046] In this embodiment, the operational amplifier U3A, the switch tube Q1, the resistor R17 and the resistor R19 constitute a constant current source circuit, which can provide a constant current for the backlight of the display screen, so that the user can clearly and accurately see the temperature data and humidity data on the display screen.

[0047] The working principle of the constant current source circuit is: according to the operational amplifier "virtual short" principle, the voltage of the inverting input terminal of the operational amplifier U3A is equal to the voltage of the non-inverting input terminal. At the same time, according to the operational amplifier "virtual open" principle, the current of the resistor R17 branch is zero. Therefore, the voltage of the second end (emitter) of the switch tube Q1 is equal to the voltage of the non-inverting input terminal of the operational amplifier U3A, and the current flowing through the resistor R19 is equal to the voltage of the non-inverting input terminal of the operational amplifier U3A / R19, which is a constant current. Since the switch tube Q1 works in the switching state, the current of the backlight LED1 is equal to the current of the resistor R19, that is, the current of the backlight LED1 is a constant current.

[0048] The above embodiments are only used to illustrate the technical solutions of the present disclosure, rather than to limit them. Although the present disclosure has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present disclosure.

Claims

1. A room temperature collector, characterized in that: include: A housing, wherein a mounting hole is provided on the housing, A display screen is arranged on a panel of the housing, A power socket is also provided on the panel of the housing; The housing is provided with a temperature acquisition circuit, a humidity acquisition circuit, a first amplification circuit and a first subtraction circuit. The temperature acquisition circuit is used to detect the indoor temperature, and the humidity acquisition circuit is used to collect the indoor humidity. The output end of the temperature acquisition circuit is connected to the first input end of the first subtraction circuit, and the output of the humidity acquisition circuit is connected to the second input end of the first subtraction circuit through the first amplifier circuit. The output end of the first subtraction circuit is used to output the indoor temperature.

2. The room temperature collector according to claim 1, characterized in that: The temperature acquisition circuit includes a bridge circuit and a second subtraction circuit connected in sequence. The bridge circuit includes a thermistor, and two output ends of the bridge circuit are respectively connected to two input ends of the second subtraction circuit, and the output end of the second subtraction circuit is the output end of the temperature acquisition circuit.

3. The room temperature collector according to claim 1, characterized in that: The humidity collection circuit comprises a humidity sensor and a second amplifier circuit connected in sequence, and the output end of the second amplifier circuit is the output end of the humidity collection circuit.

4. The room temperature collector according to claim 1, characterized in that: The backlight control circuit includes an operational amplifier U3A, a switch tube Q1, a resistor R17 and a resistor R19. The non-inverting input terminal of the operational amplifier U3A is connected to the power supply, the output terminal of the operational amplifier U3A is connected to the control terminal of the switch tube Q1, the first terminal of the switch tube Q1 is connected in series with the backlight, the second terminal of the switch tube Q1 is grounded through a resistor R19, and the second terminal of the switch tube Q1 is connected to the inverting input terminal of the operational amplifier U3A through a resistor R17.

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