CN216246568U - Portable ultrasonic wave state switching device and ultrasonic wave gas table - Google Patents
Portable ultrasonic wave state switching device and ultrasonic wave gas table Download PDFInfo
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- CN216246568U CN216246568U CN202122894072.3U CN202122894072U CN216246568U CN 216246568 U CN216246568 U CN 216246568U CN 202122894072 U CN202122894072 U CN 202122894072U CN 216246568 U CN216246568 U CN 216246568U
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Abstract
The utility model is suitable for the technical field of ultrasonic gas meter control, and provides a portable ultrasonic state switching device and an ultrasonic gas meter. According to the embodiment of the utility model, the needed ultrasonic wave state is sent to the gas meter through the infrared instruction for switching through a handheld device, and the switching can be quickly realized only by writing different programs executed by ultrasonic waves into the gas meter in advance, so that the method is very convenient and fast and is simple to operate.
Description
Technical Field
The utility model belongs to the technical field of ultrasonic gas meter control, and particularly relates to a portable ultrasonic state switching device and an ultrasonic gas meter.
Background
An ultrasonic gas meter is a gas meter for detecting gas data by ultrasonic waves, and the gas meter is subjected to air calibration and detection at least from production to application and then measures natural gas or other combustible gases, such as coal gas and the like, at a user. Therefore, the ultrasonic gas meter needs to switch to send out ultrasonic waves with different parameters according to different media or working scenes, for example, in the verification process, because the introduced gas is air, the ultrasonic waves required to be sent out during working are different from the ultrasonic waves required to be sent out during gas introduction after the gas is installed in a user.
In the conventional switching mode, the executive program is re-recorded under different scenes, a new program needs to be written every time, operation is not convenient, and the service life of a circuit is influenced.
SUMMERY OF THE UTILITY MODEL
In view of this, the embodiment of the present invention provides a portable ultrasonic state switching device and an ultrasonic gas meter, where a handheld device is used to send a required ultrasonic state to the gas meter through an infrared instruction for switching, and the switching can be performed quickly only by writing programs executed by different ultrasonic waves into the gas meter in advance, which is very convenient and simple to operate.
The first aspect of the embodiment of the utility model provides a portable ultrasonic state switching device which comprises a shell, wherein one end of the shell is provided with an infrared signal window used for being in butt joint with an infrared control area of an ultrasonic gas meter, an infrared receiving and transmitting unit is fixed on the infrared signal window, an operating surface of the shell is provided with a first ultrasonic state control button, a first indicator lamp, a second ultrasonic state control button and a second indicator lamp, and a starting switch is further arranged on the side surface of the shell.
Through a handheld device, the ultrasonic state of the requirement is sent to the gas meter through an infrared instruction to be switched, and the rapid switching can be realized only by writing programs executed by different ultrasonic waves into the gas meter in advance, so that the ultrasonic switching device is very convenient and easy to operate. For example, two modes are set: the method comprises the steps that in a user mode and a verification mode, when the infrared signal window needs to be switched, the infrared signal window is aligned to an infrared communication area (namely an infrared control area) of the gas meter, a button is correspondingly pressed, at the moment, a corresponding indicating lamp can be turned on to indicate that the gas meter works, and then the gas meter waits for completion.
Furthermore, the operation panel is also provided with a power indicator light and a sound prompt window.
The power supply is started by the power supply indicating lamp display starting switch, and the buzzer or the loudspeaker of the sound prompt window initiates sound prompt.
Furthermore, a battery bin is arranged in the shell, and a bin door of the battery bin is arranged on one side far away from the operating surface.
Since the power consumption of the switching device is not large, the switching device is powered by replacing the battery.
Furthermore, the infrared signal window is arranged on a cylindrical body extending out of one end of the shell, a protruding portion extending outwards is arranged on the cylindrical side face of the cylindrical body, the protruding portion and the end face formed by the cylindrical body form the infrared signal window, and the infrared signal window is matched with the structure of the infrared control area of the ultrasonic gas meter.
The infrared communication generally comprises a receiving unit and a transmitting unit, and whether the positions of the receiving unit and the transmitting unit are correct or not needs to be distinguished, so that the infrared signal window is set to be of a structure with an obvious asymmetric structure, when the window is matched and aligned with the corresponding area of the gas meter, the position alignment of the receiving unit and the transmitting unit is automatically completed, and the trouble of distinguishing the direction is reduced. The window of the design is similar to a round end face, a bulge extending outwards along the radius is arranged on the round end face, the corresponding area of the gas meter is also in the same shape, and the difference is that the gas meter is in a 'round' structure inwards concave.
Furthermore, an infrared transmitting tube and an infrared receiving tube are arranged in the central area of the infrared signal window.
Furthermore, a circuit board is fixed in the shell, and a processor, an infrared communication driving circuit, a control key driving circuit, an indicator light driving circuit and a power module are arranged on the circuit board.
The processor executes the switching instruction and drives each part, the infrared communication drive circuit is used for transmitting the infrared signal received by the infrared receiving tube to the processor and sending the infrared instruction out through the infrared transmitting tube, the control key drive circuit correspondingly transmits the instructions of the three keys to the processor so as to enable the processor to correspondingly execute the switching instruction, the indicator light drive circuit brightens and displays the part of the device which is working, and the power supply module provides working voltage for each part.
Furthermore, a buzzer driving circuit is further arranged on the circuit board, and a buzzer in the buzzer driving circuit is over against the outer side of the shell.
The buzzer is driven by the buzzer driving circuit to sound, so that the buzzer transmits prompt sound through the sound prompt window.
Furthermore, the infrared communication driving circuit comprises an infrared transmitting tube and an infrared receiving tube, wherein the anode of the infrared transmitting tube is connected with an infrared power supply through a sixth resistor, and the cathode of the infrared transmitting tube is connected with the infrared output end of the processor;
the negative pole of infrared receiving tube is connected infrared power supply, the positive pole of infrared receiving tube is connected with the base of third triode, the projecting pole ground connection of third triode, it has eighth resistance still to concatenate between the base of third triode and the projecting pole, the collecting electrode of third triode is connected the infrared receiving terminal of treater, the collecting electrode of third triode still is through seventh resistance connection infrared power supply.
When the infrared power is electrified, the infrared transmitting tube can transmit the instruction transmitted by the processor to the gas meter through the infrared signal, and when the infrared receiving tube receives the infrared signal, the third triode is conducted, so that the processor correspondingly receives the infrared signal.
Furthermore, the control key driving circuit comprises a starting switch control circuit, the starting switch control circuit comprises a starting switch, a power supply end of the starting switch is connected with the anode of the input power supply, the grounding end of the starting switch is grounded, and the cathode of the input power supply is grounded;
the control end of the starting switch is connected with a drain electrode of a second PMOS tube, a grid electrode of the second PMOS tube is connected with a fifth resistor in series and then is grounded, a source electrode of the second PMOS tube is used as working voltage, and the source electrode of the second PMOS tube is grounded through a first capacitor and a second capacitor which are connected in parallel.
When the input power supply is electrified, the starting switch is shifted, the second PMOS tube can be conducted, the input power supply is led to be working voltage VCC, the power supply is supplied to the equipment, the starting switch is shifted again, the power supply is cut off, and the equipment is turned off.
A second aspect of the embodiments of the present invention provides an ultrasonic gas meter, where the ultrasonic gas meter is provided with an infrared control area having a structure matched with an infrared signal window in the portable ultrasonic state switching device.
Compared with the prior art, the embodiment of the utility model has the following beneficial effects:
according to the embodiment of the utility model, the needed ultrasonic wave state is sent to the gas meter through the infrared instruction for switching through a handheld device, and the switching can be quickly realized only by writing different programs executed by ultrasonic waves into the gas meter in advance, so that the method is very convenient and fast and is simple to operate.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a perspective view of a portable ultrasonic wave state switching device according to an embodiment of the present invention;
FIG. 2 is a top view of a portable ultrasonic wave state switching device provided by an embodiment of the present invention;
FIG. 3 is a side view of a portable ultrasonic status switch device provided by an embodiment of the present invention;
FIG. 4 is a cross-sectional view A-A of FIG. 3;
FIG. 5 is a schematic circuit diagram of a processor in the portable ultrasonic stateful switchover device provided in the embodiments of the present invention;
fig. 6 is a schematic circuit diagram of an infrared communication driving circuit in the portable ultrasonic wave state switching device according to the embodiment of the present invention;
FIG. 7 is a schematic circuit diagram of an infrared power control circuit in the portable ultrasonic status switching device according to an embodiment of the present invention;
FIG. 8 is a schematic circuit diagram of a start switch control circuit in the portable ultrasonic wave state switching device according to the embodiment of the present invention;
fig. 9 is a schematic circuit diagram of a control key driving circuit in the portable ultrasonic wave state switching device according to the embodiment of the present invention;
FIG. 10 is a schematic circuit diagram of an indicator driving circuit in the portable ultrasonic wave state switching device according to an embodiment of the present invention;
fig. 11 is a schematic circuit diagram of a buzzer driving circuit in the portable ultrasonic wave state switching device according to the embodiment of the present invention.
Detailed Description
In order to explain the technical means of the present invention, the following description will be given by way of specific examples.
The embodiment of the utility model adopts the following technical scheme:
referring to fig. 1, the present embodiment provides a portable ultrasonic state switching device, which includes a housing 1, an infrared signal window 11 is disposed at one end of the housing 1, an infrared transceiver unit is fixed on the infrared signal window 11, the infrared transceiver unit includes an infrared transmitting tube 111 (denoted by D1 in the circuit) and an infrared receiving tube 112 (denoted by D2 in the circuit), the front of the housing 1 is an operation surface, and a first ultrasonic state control button 121 (denoted by a user key in the circuit), a first indicator lamp 131 (denoted by an LED3 in the circuit), a second ultrasonic state control button 122 (denoted by a verification key in the circuit), a second indicator lamp 132 (denoted by an LED2 in the circuit), a power indicator lamp 123 (denoted by an LED1 in the circuit) and a sound prompt window 14 are disposed on the operation surface, wherein the first ultrasonic state control button 121 and the first indicator lamp 131 denote a switching button and an indicator lamp of a verification mode, the second ultrasonic wave state control button 122 and the second indicator light 132 represent a switch button and an indicator light of a user mode.
The side of the housing 1 is provided with a small recess in which is located the start switch 123 (indicated in the circuit as S1).
As will be understood from fig. 1 to 3, the infrared signal window 11 of the present embodiment is disposed on a cylindrical body extending from the top end of the housing 1, an outwardly extending protrusion 113 is disposed on a cylindrical side surface of the cylindrical body facing the back side, the infrared signal window 11 is formed by the protrusion 113 and an end surface formed by the cylindrical body, and the infrared transmitting tube 111 and the infrared receiving tube 112 are disposed side by side in a central area of the infrared signal window 11.
It should be noted that the structure of the infrared signal window 11 of this embodiment is matched with the structure of the infrared control area on the ultrasonic gas meter, and is similar to the design of a male head and a female head.
Referring to fig. 4, a battery compartment 15 is provided in the housing 1, and a compartment door of the battery compartment 15 is provided on the back of the housing 1.
A circuit board is fixed in the shell 1, the right part in fig. 4 is the circuit board, and a processor, an infrared communication driving circuit, a control key driving circuit, an indicator light driving circuit, a buzzer driving circuit and a power module are arranged on the circuit board.
The buzzer 141 (denoted by LS1 in the circuit) of the buzzer driving circuit faces the sound prompt window 14 on the housing 1.
The circuit design is shown in fig. 5-11, wherein fig. 5 is a schematic circuit diagram of a processor, fig. 6 is a schematic circuit diagram of an infrared communication driving circuit, and the schematic circuit diagram includes an infrared transmitting tube D1 and an infrared receiving tube D2, wherein an anode of the infrared transmitting tube D1 is connected to an infrared power source VCC _ infra via a sixth resistor R6, and a cathode of the infrared transmitting tube D1 is connected to an infrared output terminal USART1_ TX of the processor;
the negative electrode of the infrared receiving tube D2 is connected with an infrared power supply VCC _ infrared, the positive electrode of the infrared receiving tube D2 is connected with the base electrode of a third triode Q3, the emitter electrode of the third triode Q3 is grounded, an eighth resistor R8 is connected between the base electrode and the emitter electrode of the third triode Q3 in series, the collector electrode of the third triode Q3 is connected with an infrared receiving end USART1_ RX of the processor, and the collector electrode of the third triode Q3 is connected with the infrared power supply VCC _ infrared through a seventh resistor R7.
It can be seen that in this embodiment, the infrared power VCC _ fed is also grounded through the fifth capacitor C5 and the sixth capacitor C6, which are connected in parallel, and thus functions as power filtering.
Fig. 7 shows a control circuit of the infrared power VCC _ fed, and the processor controls the Q2 to be turned on through the high level of the refer _ EN pin, so that the M1 is turned on, and the infrared power VCC _ fed can be powered.
The control key driving circuit comprises a starting switch control circuit, referring to fig. 8, the starting switch control circuit comprises a starting switch S1, a power supply end (pin 1) of the starting switch S1 is connected with the positive electrode of the input power supply, a grounding end (pin 3) of the starting switch S1 is grounded, and the negative electrode of the input power supply is grounded;
the control end (pin 2) of the start switch S1 is connected to the drain of a second PMOS transistor M2, the gate of the second PMOS transistor M2 is connected in series with a fifth resistor R5 and then grounded, the source of the second PMOS transistor M2 is used as the working voltage VCC, and the source of the second PMOS transistor M2 is further grounded through a first capacitor C1 and a second capacitor C2 which are connected in parallel. Among them, M2, R5, C1 and C2 also function as an anti-reverse circuit.
Fig. 9 is a schematic diagram of a control key driver circuit including user keys and verification keys for receiving key commands via 2 command receivers of the processor.
Fig. 10 is a schematic diagram of an indicator light drive circuit, including 3 indicator lights, showing power on, successful verification mode entry, and successful user mode entry, respectively.
Fig. 11 is a schematic diagram of a buzzer driving circuit, which includes a buzzer LS1, and a buzzer generates a warning sound by turning on a fourth transistor Q4 through a high level output from a buzzer control terminal of a processor.
The working principle of the embodiment is as follows: aligning the infrared signal window 11 to an infrared communication area of the ultrasonic gas meter, shifting the starting switch 123, then selecting an ultrasonic state instruction button to be switched and pressing, and sending a corresponding infrared instruction by the processor, so that the infrared transmitting tube 111 sends a switching instruction, and a corresponding indicator light is turned on; after the ultrasonic gas meter is switched, an infrared signal is returned, the infrared signal is received by the infrared receiving tube 112 and then sent to the processor, the processor controls the buzzer to send out a prompt sound to indicate that the ultrasonic state switching is completed, and the starting switch 123 is turned off.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention.
Claims (10)
1. The utility model provides a portable ultrasonic wave state auto-change over device which characterized in that, includes the casing, the one end of casing is provided with the infrared signal window that is used for butt joint ultrasonic wave gas table infrared control region, the infrared signal window is fixed with infrared receiving and dispatching unit, the operating surface of casing is provided with first ultrasonic wave state control button, first pilot lamp, second ultrasonic wave state control button and second pilot lamp, the side of casing still is provided with starting switch.
2. The portable ultrasonic wave state switching device according to claim 1, wherein the operation panel is further provided with a power indicator lamp and a sound prompt window.
3. The portable ultrasonic wave state switching device according to claim 1, wherein a battery compartment is provided in the housing, and a compartment door of the battery compartment is provided on a side away from the operation surface.
4. The portable ultrasonic state switching device according to claim 1, wherein the infrared signal window is disposed on a cylindrical body extending from one end of the housing, a protrusion extending outward is disposed on a cylindrical side surface of the cylindrical body, an end surface formed by the protrusion and the cylindrical body forms the infrared signal window, and the infrared signal window is matched with an infrared control area of the ultrasonic gas meter.
5. The portable ultrasonic wave state switching device according to claim 4, wherein an infrared transmitting tube and an infrared receiving tube are provided in a central region of the infrared signal window.
6. The portable ultrasonic wave state switching device according to claim 1, wherein a circuit board is fixed in the housing, and a processor, an infrared communication driving circuit, a control key driving circuit, an indicator light driving circuit and a power module are arranged on the circuit board.
7. The portable ultrasonic wave state switching device according to claim 6, wherein a buzzer driving circuit is further disposed on the circuit board, and a buzzer of the buzzer driving circuit faces an outside of the housing.
8. The portable ultrasonic wave state switching device according to claim 6, wherein the infrared communication driving circuit comprises an infrared transmitting tube and an infrared receiving tube, wherein an anode of the infrared transmitting tube is connected to an infrared power supply through a sixth resistor, and a cathode of the infrared transmitting tube is connected to an infrared output end of the processor;
the negative pole of infrared receiving tube is connected infrared power supply, the positive pole of infrared receiving tube is connected with the base of third triode, the projecting pole ground connection of third triode, it has eighth resistance still to concatenate between the base of third triode and the projecting pole, the collecting electrode of third triode is connected the infrared receiving terminal of treater, the collecting electrode of third triode still is through seventh resistance connection infrared power supply.
9. The portable ultrasonic wave state switching device according to claim 6, wherein the control key driving circuit comprises a start switch control circuit, the start switch control circuit comprises a start switch, a power supply terminal of the start switch is connected to a positive terminal of an input power supply, a ground terminal of the start switch is connected to ground, and a negative terminal of the input power supply is connected to ground;
the control end of the starting switch is connected with a drain electrode of a second PMOS tube, a grid electrode of the second PMOS tube is connected with a fifth resistor in series and then is grounded, a source electrode of the second PMOS tube is used as working voltage, and the source electrode of the second PMOS tube is grounded through a first capacitor and a second capacitor which are connected in parallel.
10. An ultrasonic gas meter, characterized in that the ultrasonic gas meter is provided with an infrared control area matched with the structure of an infrared signal window in a portable ultrasonic state switching device as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122894072.3U CN216246568U (en) | 2021-11-22 | 2021-11-22 | Portable ultrasonic wave state switching device and ultrasonic wave gas table |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122894072.3U CN216246568U (en) | 2021-11-22 | 2021-11-22 | Portable ultrasonic wave state switching device and ultrasonic wave gas table |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216246568U true CN216246568U (en) | 2022-04-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122894072.3U Active CN216246568U (en) | 2021-11-22 | 2021-11-22 | Portable ultrasonic wave state switching device and ultrasonic wave gas table |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216246568U (en) |
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2021
- 2021-11-22 CN CN202122894072.3U patent/CN216246568U/en active Active
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