A gas sensor demonstration box

Abstract

The utility model provides a kind of gas sensor demonstration box, belong to detection equipment technical field, comprising: control end and at least one controlled end with the control end establishes wireless communication, control end includes at least one gas sensor, main control unit, first wireless communication unit and first power supply unit, main control unit is electrically connected with at least one gas sensor, first wireless communication unit and first power supply unit respectively;Every controlled end includes second wireless communication unit, action unit and second power supply unit, second power supply unit is electrically connected with second wireless communication unit and action unit respectively, and second wireless communication unit and first wireless communication unit establish wireless communication connection.Afficient effect: by setting and the controlled end of control end wireless communication, in dynamic and vivid mode, the detection result of gas sensor is presented, and the intuitiveness and immersion of demonstration are enhanced.

Description

Technical Field

[0001] This utility model relates to the field of detection equipment technology, and in particular to a gas sensor demonstration box. Background Technology

[0002] In existing gas sensor demonstration kits, gas sensor detection results are typically displayed using indicator lights or display modules. When users are at a distance or cannot directly observe the demonstration kit, it is difficult to understand the gas sensor's detection status in a timely manner. Furthermore, indicator lights primarily convey information through simple methods such as on / off switching and color changes, and display modules mostly present data using static numbers, text, or simple charts, failing to dynamically and vividly present the gas sensor's detection results. This makes it difficult for users to intuitively understand the detection process and results, lacking sufficient intuitiveness and immersion. Utility Model Content

[0003] To address the above technical problems, this utility model provides a gas sensor demonstration box.

[0004] The technical problem solved by this utility model can be achieved by the following technical solution:

[0005] A gas sensor demonstration box includes:

[0006] The control terminal includes at least one gas sensor, a main control unit, a first wireless communication unit, and a first power supply unit. The main control unit is electrically connected to the at least one gas sensor, the first wireless communication unit, and the first power supply unit, respectively.

[0007] At least one controlled terminal establishes wireless communication with the control terminal. Each controlled terminal includes a second wireless communication unit, an action unit, and a second power supply unit. The second power supply unit is electrically connected to the second wireless communication unit and the action unit, respectively. The second wireless communication unit establishes a wireless communication connection with the first wireless communication unit.

[0008] Preferably, the control terminal further includes a housing and a sensor housing cover. The main control unit, the first wireless communication unit, and the first power supply unit are disposed inside the housing. The at least one gas sensor is disposed on the outer surface of the housing. The sensor housing cover is closable and disposed on the housing to cover the at least one gas sensor.

[0009] Preferably, the sensor housing cover is provided with an injection port.

[0010] Preferably, the first power supply unit includes:

[0011] The power supply end connects to an external power source.

[0012] The first power converter has its input terminal connected to the power supply terminal via a main power switch, and its output terminal connected to the main control unit.

[0013] The second power converter has its input terminal connected to the power supply terminal via the main power switch, and its output terminal connected to the first wireless communication unit.

[0014] Preferably, the control terminal further includes an indicator unit, which is electrically connected to the main control unit.

[0015] Preferably, the indicating unit includes a power indicator and a gas indicator, wherein the gas indicator includes at least one, and the gas indicator corresponds one-to-one with the gas sensor.

[0016] Preferably, the power indicator light is connected between the positive and negative terminals of the first power supply unit, and the gas indicator light is electrically connected to the main control unit.

[0017] Preferably, the gas sensor includes one or more combinations of a methane sensor, an alcohol sensor, and a hydrogen sensor.

[0018] Preferably, the controlled end corresponds one-to-one with the gas sensor.

[0019] Preferably, the controlled end is an electric toy.

[0020] The advantages or beneficial effects of this utility model's technical solution are as follows:

[0021] This invention enables users to understand the detection status in a timely manner even when they are at a distance or cannot directly observe the demonstration box by setting up a controlled terminal that communicates wirelessly with the control terminal. At the same time, the control terminal's action unit executes corresponding actions to present the gas sensor's detection results in a dynamic and vivid way, enhancing the intuitiveness and immersiveness of the demonstration. Attached Figure Description

[0022] Figure 1 This is a structural block diagram of the gas sensor demonstration box in a preferred embodiment of the present invention.

[0023] Figure 2 This is a front view of the control unit housing in a preferred embodiment of the present invention.

[0024] Figure 3 This is a side view of the control unit housing in a preferred embodiment of the present invention.

[0025] Figure 4 This is a rear view of the control unit housing in a preferred embodiment of the present invention.

[0026] Figure 5 The electrical schematic diagram of the control terminal is shown in a preferred embodiment of this utility model.

[0027] Figure 6 The electrical schematic diagram of the controlled end is shown in a preferred embodiment of this utility model.

[0028] Figure 7 This is a schematic diagram of the structure of the gas sensor demonstration box in a preferred embodiment of the present invention. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0031] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention.

[0032] See Figure 1 In a preferred embodiment of this utility model, based on the above-mentioned problems existing in the prior art, a gas sensor demonstration box is provided, comprising:

[0033] Control terminal 1 includes at least one gas sensor 11, a main control unit 12, a first wireless communication unit 13 and a first power supply unit 14, and the main control unit 12 is electrically connected to at least one gas sensor 11, the first wireless communication unit 13 and the first power supply unit 14 respectively.

[0034] At least one controlled terminal 2, at least one controlled terminal 2 establishes wireless communication with the control terminal 1, each controlled terminal 2 includes a second wireless communication unit 21, an action unit 22 and a second power supply unit 23, the second power supply unit 23 is electrically connected to the second wireless communication unit 21 and the action unit 22 respectively, and the second wireless communication unit 21 establishes a wireless communication connection with the first wireless communication unit 13.

[0035] Specifically, existing technologies using indicator lights or display modules cannot dynamically and vividly present gas detection results. When users are at a distance or cannot directly observe the demonstration box, it is difficult for them to understand the detection status of the gas sensor in a timely manner, lacking sufficient intuitiveness and immersion.

[0036] In this embodiment, by setting up a controlled terminal that establishes a wireless communication connection with the control terminal, when the gas sensor 11 detects the corresponding physical quantity, it will transmit the physical quantity to the main control unit 12. The main control unit 12 will interact with the second wireless communication unit 21 of the controlled terminal 2 through the first wireless communication unit 13 and transmit the relevant instructions to the controlled terminal 2 wirelessly.

[0037] After receiving the instruction, the control unit 22 of the control unit 2 responds and executes the corresponding action, which is used to indicate the currently detected physical quantity. Even if the user is far away from the demonstration box, or cannot directly observe the demonstration box due to certain factors, they can still understand the detection situation in a timely manner.

[0038] Meanwhile, the controlled end can present the detection results of the gas sensor in a dynamic and vivid way. For example, in this embodiment, an electric toy is used as the controlled end. When the gas sensor does not detect a physical quantity, the corresponding electric toy does not move; when the gas sensor detects a physical quantity, the corresponding electric toy performs the corresponding action to show the user that a physical quantity has been detected, thereby enhancing the intuitiveness and immersion of the demonstration.

[0039] In a preferred embodiment, such as Figure 2 , Figure 3 and Figure 4 As shown, the control terminal 1 also includes a housing 15 and a sensor housing cover 16. The main control unit 12, the first wireless communication unit 13 and the first power supply unit 14 are disposed inside the housing 15. At least one gas sensor 11 is disposed on the outer surface of the housing 15. The sensor housing cover 16 is closable and disposed on the housing 15 to cover at least one gas sensor 11.

[0040] Specifically, in this embodiment, the main control unit 12, the first wireless communication unit 13, and the first power supply unit 14 are all integrated on the circuit board and inside the housing in the control terminal to protect these components from interference and damage from external environmental factors.

[0041] The gas sensor 11 is integrated on the outside of the enclosure to more directly and sensitively sense gas information in the external environment, thereby improving the accuracy of detection.

[0042] To prevent accidental damage to the sensor by operators, a sensor box cover 16 is used to cover the gas sensor 11, thereby protecting the gas sensor 11.

[0043] The sensor box cover 16 is a box with an opening on one side, which faces the housing 15. One side of the box is connected to the upper surface of the housing 15 via a hinge or other opening and closing mechanism. After the sensor box cover 16 is closed, the other sides of the sensor box cover 16 are in contact with the upper surface of the housing 15, providing a certain detection space for the gas sensor 11.

[0044] Furthermore, the sensor housing cover 16 can be made of transparent acrylic sheet. Transparent acrylic sheet has good strength and durability, which can prevent operators from accidentally touching it and damaging the sensor, thus protecting the gas sensor 11.

[0045] In a preferred embodiment, the sensor housing cover 16 is provided with an injection port.

[0046] Specifically, in this embodiment, during the gas detection demonstration, gas can be injected through the injection port on the sensor housing cover 16 using a syringe. Once the gas enters the detection space through the injection port, the gas sensor detects the change in gas and transmits the relevant physical quantities to the main control unit. The main control unit then uses a wireless communication unit to make the controlled terminal perform corresponding actions. Operators only need to observe the actions of the controlled terminal to intuitively understand the gas detection results, enhancing the demonstration's intuitiveness and appeal.

[0047] In addition, for liquid detection, the liquid can be sprayed evenly onto a carrier such as a paper towel. Then, the sensor box cover 16 is opened, and the paper towel sprayed with liquid is placed in the detection space covered by the sensor box cover 16. The vapor generated by the liquid evaporation will be captured by the gas sensor. Just like gas detection, the main control unit will receive the relevant information and control the controlled end to take action.

[0048] In a preferred embodiment, such as Figure 5 As shown, the first power supply unit 14 includes:

[0049] Power supply terminal 141 connects to an external power supply;

[0050] The first power converter AVR1 has its input terminal connected to the power supply terminal 141 via the main power switch SW1, and its output terminal connected to the main control unit 12.

[0051] The second power converter AVR2 has its input terminal connected to the power supply terminal 141 via the main power switch SW1, and its output terminal connected to the first wireless communication unit 13.

[0052] Specifically, in this embodiment, as follows: Figure 4As shown, the power supply terminal 141 is a power input socket set on the housing 15. It is connected to an external power supply in a pluggable manner using an AC 220V power cord 142. The external power supply powers the demonstration box of this utility model, ensuring that it can operate normally and stably.

[0053] The first power converter AVR1 is used to convert AC 220V voltage into a voltage suitable for the operation of the main control unit 12. The second power converter AVR2 is used to convert AC 220V voltage into a voltage suitable for the operation of the first wireless communication unit 13.

[0054] A main power switch SW1 is provided between the power supply terminal 141 and the first power converter AVR1 and the second power converter AVR2. When the main power switch SW1 is closed, power from the power supply terminal 141 is supplied to the first power converter AVR1 and the second power converter AVR2.

[0055] Furthermore, both the first power converter AVR1 and the second power converter AVR2 are AC / DC converters. AC / DC converters have efficient and stable power conversion capabilities, and can accurately convert externally input AC power into DC power to meet the DC power requirements of the main control unit 12 and the first wireless communication unit 14, thereby ensuring the stable operation of the entire demonstration box system.

[0056] In a preferred embodiment, the control terminal 1 further includes an indicator unit, which is electrically connected to the main control unit 12.

[0057] Specifically, in this embodiment, the indicating unit can be implemented using an indicator light or a display screen. When the gas sensor 11 detects the corresponding physical quantity, it transmits the physical quantity to the main control unit 12. The main control unit 12 then controls the indicator light to illuminate or displays the detection result on the display screen.

[0058] Taking an indicator light as the indicating unit as an example. In a preferred embodiment, as shown... Figure 2 As shown, the indicator unit includes a power indicator light 181 and a gas indicator light 182. The gas indicator light 182 includes at least one, and each gas indicator light 182 corresponds to a gas sensor 11.

[0059] In a preferred embodiment, the power indicator light 181 is connected between the positive and negative terminals of the first power supply unit 14, and the gas indicator light 182 is electrically connected to the main control unit 12.

[0060] In a preferred embodiment, the gas sensor 11 includes one or more combinations of a methane sensor, an alcohol sensor, and a hydrogen sensor.

[0061] Specifically, the gas sensor 11 can be of only one type. For example, it can be equipped with only a methane sensor, or only an alcohol sensor, or only a hydrogen sensor, thereby enabling the detection of a single type of gas.

[0062] The gas sensor 11 can also be used in various combinations. For example, a methane sensor can be paired with an alcohol sensor, or a methane sensor can be combined with a hydrogen sensor, or an alcohol sensor can be combined with a hydrogen sensor, or even a combination of a methane sensor, an alcohol sensor, and a hydrogen sensor can be used.

[0063] Of course, this is not the only option. In practical applications, in addition to the three types of sensors mentioned above, other types of sensors can also be used.

[0064] like Figure 5 As shown, LED HL1 is the power indicator 181, LED HL2 is the gas indicator corresponding to the methane sensor, LED HL3 is the gas indicator corresponding to the alcohol sensor, and LED HL4 is the gas indicator corresponding to the hydrogen sensor.

[0065] When the methane sensor detects methane gas, the main control unit 12 controls the HL2 light to illuminate; when the alcohol sensor detects gas, the main control unit 12 controls the HL3 light to illuminate; when the hydrogen sensor detects hydrogen gas, the main control unit 12 controls the HL4 light to illuminate.

[0066] like Figure 5 As shown, the main control unit 12 uses the main control board 121 as its carrier. It also includes a quick-connect connector 19. The port of the main control board 121 is connected to the quick-connect connector 19 through a wire. The quick-connect connector 19 is disposed on the housing 15 for the gas sensor 11 to be plugged in, so as to realize the electrical connection between the main control board 121 and the gas sensor 11.

[0067] The first wireless communication unit 13 uses a transmitting substrate as a carrier. There can be one or more transmitting substrates, and the number of transmitting substrates corresponds one-to-one with the gas sensor type and the controlled terminal 2.

[0068] In this embodiment, the first wireless communication unit 13 includes a first transmitting substrate 131, a second transmitting substrate 132, and a third transmitting substrate 133. When the methane sensor detects methane gas, the main control unit 12 controls the HL2 lamp to light up while simultaneously driving the controlled terminal connected to the first transmitting substrate 131 to operate via the first transmitting substrate 131.

[0069] Similarly, when the alcohol sensor detects gas, the main control unit 12 controls the HL3 lamp to light up while driving the controlled terminal connected to the second emission substrate 132 to operate through the second emission substrate 132; when the hydrogen sensor detects hydrogen, the main control unit 12 controls the HL4 lamp to light up while driving the controlled terminal connected to the third emission substrate 133 to operate through the third emission substrate 133.

[0070] like Figure 6 As shown, the second wireless communication unit 21 uses the receiving substrate 211 as a carrier, the action unit 22 is implemented by the drive motor 221, and the second power supply unit 23 is implemented by the 3V battery 231. The 3V battery 231 supplies power to the receiving substrate 21 and the drive motor 221.

[0071] Specifically, the first end of the receiving substrate 211 is connected to the positive terminal of the 3V battery 231 and the anode of the drive motor 221 through the capacitor C1, the second end of the receiving substrate 211 is connected to the negative terminal of the 3V battery 231, and the third end of the receiving substrate 211 is connected to the cathode of the drive motor 221.

[0072] In a preferred embodiment, the controlled end 2 corresponds one-to-one with the gas sensor 11.

[0073] In a preferred embodiment, the controlled end 2 is an electric toy.

[0074] In this embodiment, three sensors—methane, alcohol, and hydrogen—are simultaneously used as an example, corresponding to electric toys 2A, 2B, and 2C, respectively. Each of the three electric toys is displayed in a different animal form. Of course, this is not limited to animal forms; other forms can be used in practical applications.

[0075] When these three different types of gas sensors detect the corresponding gas, the main control unit 12 outputs the corresponding signal to drive the electric toy to move wirelessly.

[0076] The usage procedure of the gas sensor demonstration box of this utility model is as follows:

[0077] 1-1) Start the power supply

[0078] a) Insert the AC 220V power cord 142 into the power input socket and close the main power switch SW1;

[0079] b) After closing the main power switch SW1, confirm whether the power indicator light 181 is lit.

[0080] 1-2) Alcohol test

[0081] a) Spray alcohol onto a paper towel, then open the sensor box cover 16 and place the alcohol-sprayed paper towel on the sensor.

[0082] b) Observe whether the corresponding yellow alcohol indicator light is lit, and at the same time check whether the electric toy is working.

[0083] c) After the test is completed, open the sensor box cover 16 and take out the paper towel. When the gas concentration decreases, the indicator light will turn off and the electric toy will stop moving.

[0084] Note: Do not spray too much alcohol, as high concentrations of alcohol may trigger the methane sensor.

[0085] 1-3) Methane test

[0086] a) Use a syringe to draw 10 ml of methane with a concentration of 99.9 vol% and inject it into a 0.3 L gas bag. At this time, the methane concentration is approximately 3.3 vol%.

[0087] b) Check if the corresponding yellow methane indicator light is on, and at the same time check if the electric toy is working;

[0088] c) After the test is completed, open the sensor box cover 16. Once the gas concentration decreases, the indicator light will turn off and the electric toy will stop moving.

[0089] Note: If the desired effect is not achieved after injecting 10ml of methane, another 5-10ml can be injected.

[0090] 1-4) Hydrogen test

[0091] a) Draw 1 ml of 99.9 vol% hydrogen gas with a syringe and inject it into a 0.3 L gas bag. At this time, the hydrogen gas concentration is about 3300 ppm.

[0092] b) Confirm that the corresponding yellow hydrogen indicator light is on, and check if the electric toy is working.

[0093] c) After the test is completed, open the sensor box cover 16. When the gas concentration decreases, the indicator light will turn off and the electric toy will stop moving.

[0094] Note: If there is no reaction after injecting 1ml of hydrogen gas, another 1ml can be injected.

[0095] The advantages or beneficial effects of adopting the above technical solution are as follows: By setting up a controlled terminal that communicates wirelessly with the control terminal, the present invention can enable users to understand the detection situation in a timely manner even when they are at a distance or cannot directly observe the demonstration box; at the same time, by using the action unit of the controlled terminal to perform corresponding actions, the detection results of the gas sensor are presented in a dynamic and vivid way, which enhances the intuitiveness and immersiveness of the demonstration.

[0096] The above are merely preferred embodiments of the present utility model and are not intended to limit the implementation methods and protection scope of the present utility model. Those skilled in the art should realize that any equivalent substitutions and obvious changes made using the content of this specification and illustrations should be included within the protection scope of the present utility model.

Claims

1. A gas sensor demonstration box, characterized in that, include: The control terminal includes at least one gas sensor, a main control unit, a first wireless communication unit, and a first power supply unit. The main control unit is electrically connected to the at least one gas sensor, the first wireless communication unit, and the first power supply unit, respectively. At least one controlled terminal establishes wireless communication with the control terminal. Each controlled terminal includes a second wireless communication unit, an action unit, and a second power supply unit. The second power supply unit is electrically connected to the second wireless communication unit and the action unit, respectively. The second wireless communication unit establishes a wireless communication connection with the first wireless communication unit.

2. The gas sensor demonstration box according to claim 1, characterized in that, The control unit also includes a housing and a sensor housing cover. The main control unit, the first wireless communication unit, and the first power supply unit are disposed in the housing. The at least one gas sensor is disposed on the outer surface of the housing. The sensor housing cover is detachably disposed on the housing to cover the at least one gas sensor.

3. The gas sensor demonstration box according to claim 2, characterized in that, The sensor housing cover is equipped with an injection port.

4. The gas sensor demonstration box according to claim 1, characterized in that, The first power supply unit includes: The power supply end connects to an external power source. The first power converter has its input terminal connected to the power supply terminal via a main power switch, and its output terminal connected to the main control unit. The second power converter has its input terminal connected to the power supply terminal via the main power switch, and its output terminal connected to the first wireless communication unit.

5. The gas sensor demonstration box according to claim 1, characterized in that, The control terminal also includes an indicator unit, which is electrically connected to the main control unit.

6. The gas sensor demonstration box according to claim 5, characterized in that, The indicator unit includes a power indicator and a gas indicator, with at least one gas indicator, and each gas indicator corresponds to a gas sensor.

7. The gas sensor demonstration box according to claim 6, characterized in that, The power indicator light is connected between the positive and negative terminals of the first power supply unit, and the gas indicator light is electrically connected to the main control unit.

8. The gas sensor demonstration box according to claim 1, characterized in that, The gas sensor includes one or more combinations of methane sensor, alcohol sensor, and hydrogen sensor.

9. The gas sensor demonstration box according to claim 1, characterized in that, Each controlled terminal corresponds to one of the gas sensors.

10. The gas sensor demonstration box according to claim 1, characterized in that, The controlled end is an electric toy.

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