Wireless controller positioning device and air conditioning system

Abstract

The application discloses a wire controller positioning device and an air conditioning system. The application comprises at least one trigger unit installed in an air conditioner indoor unit, an AND gate module connected with all the trigger units, and an output end of the AND gate module connected to a wire controller corresponding to the air conditioner indoor unit. When all the trigger units receive a trigger signal, the AND gate module triggers the corresponding wire controller, so that the corresponding wire controller sends an alarm action to remind a user that the wire controller is the wire controller corresponding to the current air conditioner indoor unit, thereby solving the problem that the corresponding relationship between the air conditioner indoor unit and the wire controller cannot be accurately searched when the use time is too long.

Description

Technical Field

[0001] This invention relates to the field of air conditioning technology, and in particular to a wired controller positioning device and an air conditioning system. Background Technology

[0002] In large indoor spaces such as conference rooms and lecture halls, several indoor air conditioning units are typically installed to meet the ambient temperature requirements. Each indoor unit is equipped with a corresponding wired controller for one-to-one control, ensuring that the controls do not interfere with each other. However, in daily installation and use, the wired controllers are usually installed together. Over time, it becomes difficult to accurately determine the correspondence between the indoor unit and the controller. Summary of the Invention

[0003] In order to solve the technical problem in the prior art that the indoor unit of an air conditioner cannot quickly locate the wired controller, the present invention proposes a wired controller positioning device and an air conditioning system.

[0004] The technical solution adopted in this invention is:

[0005] A wired controller positioning device is proposed, comprising at least one trigger unit installed in an indoor air conditioner unit, and an AND gate module connecting all the trigger units. The output terminal of the AND gate module is connected to the wired controller corresponding to the indoor air conditioner unit, and can trigger the wired controller according to the trigger state of the trigger unit.

[0006] Furthermore, all of the trigger units are installed at the top corner of the outer plane of the air conditioner indoor unit, and when multiple trigger units are set, any two trigger units are located at different top corners of the outer plane of the air conditioner indoor unit.

[0007] Furthermore, the triggering unit includes at least one photosensitive element, and when the photosensitive element is triggered, the triggering unit sends a high-level signal to the AND gate module;

[0008] The AND gate module controls the wired controller to trigger only when all the triggering units connected to it emit a high level.

[0009] Furthermore, the triggering unit includes a photoresistor R1, a resistor R2, a resistor R3, a resistor R4, and a comparator U1A;

[0010] In this circuit, the photoresistor R1 serves as the photosensitive element, with one end of the photoresistor R1 connected to the power supply and the other end connected in series with the resistor R2 and then grounded. The inverting input of the comparator U1A is connected in series with the resistor R3 and then between the photoresistor R1 and the resistor R2. The non-inverting input is connected to the reference voltage, and the output is connected in series with the resistor R4 and then serves as the output of the trigger unit and is connected to the AND gate module.

[0011] Furthermore, two triggering units are provided, namely a first triggering unit and a second triggering unit, and the AND gate module adopts an optocoupler;

[0012] The first end of the control terminal of the optocoupler is connected to the output terminal of the first trigger unit, and the second end is grounded. The first end of the controlled terminal of the optocoupler is connected to the output terminal of the second trigger unit, and the second end is connected to the wired controller.

[0013] Furthermore, multiple triggering units are provided, and the AND gate module adopts an AND gate circuit;

[0014] The input terminals of the AND gate circuit are respectively connected to the trigger unit, and the output terminal of the AND gate circuit is connected to the wired controller.

[0015] Furthermore, the range of the set value of the reference voltage is as follows:

[0016]

[0017] Among them, U f U0 is the reference voltage, R2 is the resistance of R2, α is the characteristic value of the photoresistor R1 in an indoor environment, and β is the characteristic value of the photoresistor under laser pointer illumination, where α > β.

[0018] Furthermore, the set value of the resistor R2 is within the following range:

[0019]

[0020] Wherein, α is the characteristic value of the photoresistor R1 in an indoor environment, β is the characteristic value of the photoresistor R1 under laser pointer illumination, and R2 is the resistance value of the resistor R2.

[0021] Furthermore, the characteristic value α of the photoresistor R1 in an indoor environment is 1500Ω, the characteristic value β of the photoresistor R1 under laser pointer illumination is 300Ω, the resistance of the resistor R2 is 4kΩ, and the set value of the reference voltage is 0.85V.

[0022] The present invention also proposes an air conditioning system having a wired controller positioning device as described above.

[0023] Compared with the prior art, the present invention has at least the following beneficial effects:

[0024] This invention overcomes the shortcomings of the prior art by installing at least one trigger unit in the indoor unit of the air conditioner. By sending a positioning instruction to the trigger unit of a specific indoor unit and outputting a positioning signal through an AND gate module, the corresponding wired controller receives the positioning signal and triggers an alarm to remind the user of the location of the corresponding wired controller. This solves the problem that the correspondence between the indoor unit and the wired controller cannot be accurately retrieved when the usage time is too long. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the overall triggering process of the present invention;

[0027] Figure 2 This is a schematic diagram of the installation of the triggering device in an embodiment of the method of the present invention;

[0028] Figure 3 This is a schematic diagram illustrating the setting principle of the trigger unit in this invention;

[0029] Figure 4 This is a circuit connection diagram of an embodiment of the device of the present invention;

[0030] 1. Air conditioner indoor unit frame; 2. Trigger unit. Detailed Implementation

[0031] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0032] Therefore, a feature pointed out in this specification is used to describe one feature of one embodiment of the invention, and does not imply that every embodiment of the invention must have the described feature. Furthermore, it should be noted that this specification describes many features. Although certain features may be combined to illustrate possible system designs, these features may also be used in other combinations not explicitly stated. Therefore, unless otherwise stated, the described combinations are not intended to be limiting.

[0033] The principles and structure of the present invention will be described in detail below with reference to the accompanying drawings and embodiments.

[0034] In large indoor spaces such as conference rooms and lecture halls, several indoor air conditioning units are typically installed to meet the ambient temperature requirements. Each indoor unit is equipped with a corresponding wired controller for one-to-one control, ensuring that the controls do not interfere with each other. However, in daily installation and use, the wired controllers are usually installed together. Over time, it becomes difficult to accurately determine the correspondence between the indoor unit and the controller.

[0035] Therefore, in order to solve the problem in the existing technology that the correspondence between the indoor unit of an air conditioner and its corresponding wired controller cannot be accurately retrieved due to prolonged use, this invention proposes a wired controller positioning device, comprising:

[0036] At least one triggering unit is installed in the indoor unit of the air conditioner to trigger the wired controller when a trigger signal is received;

[0037] The AND gate module connects the trigger unit and the wired controller, and is used to coordinate all trigger units and trigger the wired controller according to the trigger status of the trigger units;

[0038] Its working principle is as follows: After the trigger unit is set in the indoor unit of the air conditioner, a trigger signal is provided to the trigger unit in the indoor unit, which will trigger the connected wired controller. This allows the correspondence between the indoor unit where the trigger unit receiving the trigger signal is located and the triggered wired controller to be established. The use of multiple trigger units and AND gate modules is to avoid misjudgments that may occur when setting a single trigger unit. In summary, the wired controller positioning device proposed in this invention solves the problem of inaccurately retrieving the correspondence between the indoor unit and the wired controller by setting at least one trigger unit in the indoor unit of the air conditioner for locating the wired controller corresponding to that indoor unit.

[0039] For details, please see Figure 2 1 represents the frame of the indoor unit of the air conditioner, and 2 represents the trigger unit. In order to prevent the trigger units 2 from interfering with each other, the trigger units are installed at two opposite top corners of the outer plane of the indoor unit of the air conditioner. This design avoids misjudgment that may occur when using a single trigger unit.

[0040] Furthermore, in other embodiments of the present invention, the triggering unit may be configured as multiple units, and when multiple triggering units are configured, any two triggering units are located at different apex corners of the outer plane of the air conditioner indoor unit.

[0041] Please see Figure 3 This is a schematic diagram of the setting principle of the trigger unit in the present invention. In this embodiment, the trigger unit can be set to at least one, and each trigger unit is connected to the AND gate module.

[0042] Each trigger unit includes at least one photosensitive element, and when the photosensitive element is triggered, the trigger unit sends a high-level signal to the AND gate module. The AND gate module only controls the wired controller to trigger when all the trigger units connected to it send high-level signals. After the wired controller is triggered, it performs an alarm action to remind the user that the wired controller is the wired controller corresponding to the current indoor unit.

[0043] Specifically, the working logic of the AND gate module is F = A * B * C ..., where F is the output signal of the AND gate module, and A, B, C ... are the output signals of the trigger units, where 1 represents a high level and 0 represents a low level. From the above operational logic, it can be seen that the output signal F of the AND gate module is only 1 when all of A, B, C ... are 1. That is, the AND gate module will only output a high-level signal when all trigger units connected to it output high-level signals, thereby triggering the wired controller and minimizing misjudgments caused by partial trigger unit mis-triggers.

[0044] Please see Figure 1 This is a schematic diagram of the overall triggering process of the present invention. First, several trigger units are installed in the indoor unit of the air conditioner (all trigger units are connected to the AND gate module). When it is necessary to locate the wired controller corresponding to the current indoor unit, all the trigger units installed in the current indoor unit are triggered. When all the trigger units installed in the current indoor unit detect the trigger signal, the AND gate module outputs a positioning signal (i.e., the high-level signal mentioned above) to the wired controller. After receiving the positioning signal, the wired controller starts working and performs an alarm action to remind the user that the wired controller is the one corresponding to the current indoor unit.

[0045] Compared to air conditioning systems without the device of this invention, this design solves the problem of not being able to accurately retrieve the correspondence between the indoor unit and the wired controller when the system has been in use for a long time.

[0046] In a preferred embodiment of the present invention, a laser triggering unit is used. During detection, the triggering unit is triggered by emitting a laser, causing the triggering unit to emit a high-level signal. The advantages of using a laser triggering unit in this embodiment are: lasers have strong penetrating power, allowing them to penetrate the outer frame of the air conditioner's indoor unit and directly trigger the laser triggering unit; laser triggering units are inexpensive, simple to manufacture, and the tools used to trigger them are commonly found in daily life.

[0047] Specifically, in this embodiment, the photosensitive element in the laser triggering unit is a photoresistor. The resistance of the photoresistor changes with the light intensity. With the help of a specific circuit, it is easy to realize a scheme that emits a high-level signal under laser irradiation.

[0048] Please see Figure 4This is a circuit connection diagram of the trigger unit and the AND gate module in a preferred embodiment of the present invention. In this embodiment, there are two trigger units, namely a first trigger unit and a second trigger unit. The first trigger unit consists of a photoresistor R1, a resistor R2, a resistor R3, a resistor R4, and a comparator U1A.

[0049] The second trigger unit consists of a photoresistor R5, a resistor R6, a resistor R7, a resistor R8, and a comparator U1B.

[0050] Here, the circuit structures of the first trigger unit and the second trigger unit are completely identical. Therefore, the working principle of the present invention will be explained below using the first trigger unit. Specifically, the first trigger unit includes a photoresistor R1, a resistor R2, a resistor R3, a resistor R4, and a comparator U1A.

[0051] Among them, the photoresistor R1 is used as a photosensitive element, and one end of the photoresistor R1 is connected to the power supply VIN, and the other end is connected to ground after being connected in series with the resistor R2. The inverting input terminal of the comparator U1A is connected between the photoresistor R1 and the resistor R2 after being connected in series with the resistor R3. The non-inverting input terminal is connected to the reference voltage VF. The output terminal is connected to the AND gate module after being connected in series with the resistor R4.

[0052] The working principle of the first trigger unit is as follows: Photoresistor R1 is configured to increase in resistance with increasing light intensity. When not irradiated by a laser, photoresistor R1 and resistor R2 together divide the voltage VIN. At this time, the voltage between photoresistor R1 and resistor R2 (i.e., the voltage at the inverting input of comparator U1A) is VIN*R2 / (R1+R2). This voltage is greater than the reference voltage VF set by comparator U1A, so comparator U1A outputs a low-level signal. After laser irradiation, the resistance of photoresistor R1 increases. From the voltage relationship VIN*R2 / (R1+R2) between photoresistor R1 and resistor R2, we know that the voltage between them decreases to less than the reference voltage VF. At this time, comparator U1A outputs a high-level signal. That is, under laser irradiation, the first trigger unit outputs a high-level signal. Similarly, the working principle of the second trigger unit is the same as the first trigger unit; both output a high-level signal under laser irradiation.

[0053] Furthermore, in Figure 4 In this embodiment, the AND gate module uses an optocoupler UND1;

[0054] The first end of the control terminal of the optocoupler (port 1 of UND1) is connected to the output terminal of the first trigger unit, and the second end (port 2 of UND1) is grounded. The first end of the controlled terminal of the optocoupler (port 4 of UND1) is connected to the output terminal of the second trigger unit, and the second end (port 3 of UND1) is connected to the wired controller.

[0055] The following is in conjunction with the appendix Figure 4 The overall working principle of this invention is explained as follows: When photoresistors R1 (and R5) detect laser light, according to the characteristics of photoresistors, the increased light intensity causes a decrease in the resistance of photoresistors R1 (and R5). This decrease in resistance leads to a decrease in the voltage across photoresistors R1 (and R5), and consequently, an increase in the input voltage of the inverting input terminals of comparator U1A (and U1B). When the input voltage of the inverting input terminals of comparator U1A (and U1B) is less than the reference voltage VF, the output terminals of comparator U1A (and U1B) output a high-level signal.

[0056] When the output of comparator U1A is high, the control terminal of optocoupler UND1 is powered on and conducts, providing an optical signal to its controlled terminal, thus enabling the controlled terminal to conduct. At this time, the high-level signal output of comparator U1B can be output to pin VOUT through the controlled terminal of optocoupler UND1. The high-level signal output of comparator U1B then serves as the aforementioned positioning signal to trigger the wired controller, allowing the user to determine the corresponding wired controller.

[0057] In this embodiment, the formula for the range of the reference voltage VF setting value is as follows:

[0058]

[0059] Among them, U f U0 is the voltage value of the reference voltage VF, R2 is the resistance value of resistor R2, α is the characteristic value of photoresistor R1 in an indoor environment, and β is the characteristic value of photoresistor R1 under laser pointer illumination, where α>β; the units of α and β are both Ω.

[0060] The calculation method for the range of the reference voltage VF setting value is as follows:

[0061] In the absence of laser light, the voltage values ​​at points a and b are:

[0062]

[0063] At this point, U is required. a >U f ;

[0064] In the presence of a laser, the voltage values ​​at points a and b are:

[0065]

[0066] At this point, U is required. a′<U f ;

[0067] Combining the voltage values at point a and point b with and without laser, the formula for the value range of the reference voltage VF setting is:

[0068]

[0069] where the voltage-dividing resistor R2 > 0;

[0070] Here, the resistor R2 and the resistor R6 have the same resistance value. In general, the photosensitive degrees of the photosensitive resistor R1 in the first trigger unit and the photosensitive resistor R5 in the second trigger unit are the same, and the voltage values at point a and point b are the same. Therefore, in the second trigger unit, the value range of the reference voltage can also be set as:

[0071]

[0072] In actual situations, it is also necessary to prevent a 10% error in the input voltage value. Taking the 10% error into account, the formula for the value range of the reference voltage VF setting in actual situations is:

[0073]

[0074] Thus, the value range of the voltage-dividing resistors (resistor R2 and resistor R6) is obtained as:

[0075]

[0076] In a specific embodiment of the present invention, the voltage of the power supply VIN is set to 5V, the characteristic value α of the photosensitive resistor R1 and the photosensitive resistor R5 in the indoor environment is 1500Ω, the characteristic value β under the irradiation of a laser pen is 300Ω, and the value range of the resistor R2 and the resistor R6 is 110Ω < R2 = R6 < 4089Ω. As a preferred embodiment, the resistance values of the resistor R2 and the resistor R6 are set to 4kΩ, and the reference voltage is set to 0.85V.

[0077] Among them, Figure 4 As shown in the case of setting two trigger units, the AND operation logic can be achieved through an optocoupler in this case. In other embodiments of the present invention, there are multiple trigger units, and in this case, the above working principle needs to be achieved through an AND gate circuit.

[0078] Specifically, when the trigger unit is set to one, it can be directly connected to the wire controller through the trigger unit to achieve the positioning purpose (since there are misjudgments, this embodiment is often not adopted);

[0079] When there are two trigger units, the two trigger units are connected by an optocoupler and then connected to the wired controller. After the wired controller performs an AND operation, the purpose of preventing false judgment is achieved.

[0080] When there are two or more trigger units, an AND gate circuit is used for logic operation. In this embodiment, the input terminal of the AND gate circuit needs to be connected to all the trigger units respectively, and the output terminal of the AND gate unit needs to be connected to the wired controller. After the AND gate operation, the purpose of preventing false judgment is achieved.

[0081] In practical use, setting two trigger units can achieve a good effect in preventing false judgments, which is the preferred embodiment of the present invention. In other embodiments, such as when cost is saved, one trigger unit can be set, or when higher positioning accuracy is required, multiple trigger units can be set. The specific number of trigger units can be adjusted according to the actual situation, and is not limited in the present invention.

[0082] Furthermore, the present invention also proposes an air conditioning system having the above-mentioned wired controller positioning device.

[0083] Compared with the prior art, the present invention installs at least one trigger unit in the indoor unit of the air conditioner, sends a positioning instruction to the trigger unit of a specific indoor unit, and outputs a positioning signal through an AND gate module. After receiving the positioning signal, the corresponding wired controller will perform an alarm action to remind the user of the location of the corresponding wired controller. This solves the problem that the correspondence between the indoor unit and the wired controller cannot be accurately retrieved when the usage time is too long.

[0084] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A wire positioner apparatus, characterized by, It includes at least one trigger unit installed in the indoor unit of an air conditioner, and an AND gate module connecting all the trigger units. The output of the AND gate module is connected to a wired controller corresponding to the indoor unit of the air conditioner, and can trigger the wired controller according to the trigger state of the trigger unit. The triggering unit includes at least one photosensitive element, and when the photosensitive element is triggered, the triggering unit sends a high-level signal to the AND gate module; the AND gate module controls the wired controller to trigger only when all the triggering units connected to it send a high level signal. The triggering unit includes a photoresistor R1, a resistor R2, a resistor R3, a resistor R4, and a comparator U1A. The photoresistor R1 serves as the photosensitive element, with one end connected to the power supply and the other end connected in series with the resistor R2 and then grounded. The inverting input of the comparator U1A is connected in series with the resistor R3 and then between the photoresistor R1 and the resistor R2. The non-inverting input is connected to a reference voltage, and the output is connected in series with the resistor R4 and then serves as the output of the triggering unit, connected to the AND gate module. The range of the set value of the reference voltage is as follows: ； wherein, is the reference voltage, is the voltage of the power supply, R2 is the resistance value of the resistor R2, is the characteristic value of the photoresistor R1 in an indoor environment, is the characteristic value of the photoresistor under the irradiation of a laser pointer, .​ 2. The positioning device for the wire controller according to claim 1, characterized in that, All of the trigger units are installed at the top corner of the outer plane of the air conditioner indoor unit, and when there are multiple trigger units, any two trigger units are located at different top corners of the outer plane of the air conditioner indoor unit.

3. The positioning device for the wire controller according to claim 1, characterized in that, The system is provided with two triggering units, namely a first triggering unit and a second triggering unit, and the AND gate module adopts an optocoupler; The first end of the control terminal of the optocoupler is connected to the output terminal of the first trigger unit, and the second end is grounded. The first end of the controlled terminal of the optocoupler is connected to the output terminal of the second trigger unit, and the second end is connected to the wired controller.

4. The positioning device for the wire controller according to claim 1, characterized in that, The triggering unit is provided in multiple ways, and the AND gate module adopts an AND gate circuit. The input terminals of the AND gate circuit are respectively connected to the trigger unit, and the output terminal of the AND gate circuit is connected to the wired controller.

5. The positioning device for the wire controller according to claim 1, characterized in that, The range of values ​​for the set value of resistor R2 is as follows: ； in, This refers to the characteristic value of the photoresistor R1 under indoor conditions. R1 is the characteristic value of the photoresistor R1 under laser pointer illumination, and R2 is the resistance value of the resistor R2.

6. The positioning device for the wire controller according to claim 5, characterized in that, The characteristic value of the photoresistor R1 under indoor environment The characteristic value of the photoresistor R1 under laser pointer illumination is 1500Ω. The resistance of the resistor R2 is 4kΩ and the reference voltage is set to 0.85V.

7. An air conditioning system, characterized in that, The air conditioning system has a wired controller positioning device as described in any one of claims 1 to 6.

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