CN217007727U - Detection circuit and detection device of receiving device - Google Patents
Detection circuit and detection device of receiving device Download PDFInfo
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- CN217007727U CN217007727U CN202220862862.5U CN202220862862U CN217007727U CN 217007727 U CN217007727 U CN 217007727U CN 202220862862 U CN202220862862 U CN 202220862862U CN 217007727 U CN217007727 U CN 217007727U
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- 238000001514 detection method Methods 0.000 title claims abstract description 93
- 230000002238 attenuated effect Effects 0.000 claims abstract description 32
- 239000003990 capacitor Substances 0.000 claims description 24
- 239000013078 crystal Substances 0.000 claims description 11
- 230000000087 stabilizing effect Effects 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
The utility model discloses a detection circuit of a receiving device and the detection device, the detection circuit of the receiving device combines and matches a detection prompt module, an attenuation infrared emission module and a power supply module to form the detection device which has simple application circuit and convenient operation and is used for detecting the receiving device, directly sending the attenuated infrared IR signal to a receiving device to be detected through an attenuated infrared emission module, whether a low level signal output by a receiving device to be detected is received or not is detected by a detection prompting module, if the receiving device to be detected can receive the infrared IR signal and correspondingly output a low-level signal, the receiving function and the sending function of the receiving device to be detected can normally operate, so that the technical problems of inconvenience, low efficiency and high cost in the existing scheme for detecting the receiving device are solved.
Description
Technical Field
The present invention relates to the field of production detection of receiving devices, and in particular, to a detection circuit and a detection device for a receiving device.
Background
In the electronic manufacturing process of the receiving device, a tester needs to test the semi-finished product receiving device to ensure that the receiving device in subsequent production can normally operate, the existing detection scheme for the receiving device is to use an oscilloscope to detect the voltage of an IR signal output pin of a receiving head of the receiving device, and the tester judges whether the receiving device to be detected can normally operate or not by observing the waveform of the oscilloscope.
However, the existing detection scheme of the receiving device can be operated by professional technicians, so that inconvenience, low efficiency and misjudgment of detection operation exist, the cost of the oscilloscope is high, and the production expenditure of manufacturers is increased to a certain extent.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims to provide a detection circuit and a detection device of a receiving device, and aims to solve the technical problems of inconvenience, low efficiency, high misjudgment and high cost of the conventional scheme for detecting the receiving device.
In order to achieve the above object, the present invention provides a detection circuit of a receiving device, wherein the detection circuit of the receiving device comprises an attenuated infrared emission module, a detection prompt module and a power supply module;
the power input ends of the detection prompt module and the attenuation infrared emission module are connected with the power output end of the power supply module;
the attenuated infrared emission module is used for sending an infrared IR signal to a receiving device;
the detection prompting module is used for prompting an operator whether the receiving device is in a running state;
and the power supply module is used for supplying power to the detection prompt module and the attenuation infrared emission module.
Optionally, the attenuated infrared emission module includes an attenuating resistor, a first triode, and an infrared emission diode;
one end of the attenuation resistor is connected with the base electrode of the first triode, and the collector electrode of the first triode is connected with the negative electrode of the infrared emitting diode;
and the emitter of the first triode is grounded.
Optionally, the attenuated infrared emission module further includes a control processing chip and a crystal oscillator;
a pin 1 of the crystal oscillator is connected with a first pin of the control processing chip, and a pin 2 of the crystal oscillator is connected with a second pin of the control processing chip;
and a third pin of the control processing chip is connected with the other end of the attenuation resistor.
Optionally, the attenuated infrared emission module further comprises a battery and a switching device;
the negative pole of the battery is grounded, and the positive pole of the battery is connected with one end of the switching device.
Optionally, the attenuated infrared emission module further comprises a first capacitor and a second capacitor;
one end of the first capacitor and one end of the second capacitor are connected in series with the other end of the switching device, and the other ends of the first capacitor and the second capacitor are connected in series with the anode of the infrared emitting diode.
Optionally, the detection prompting module includes a second triode and a light emitting diode;
and the collector of the second triode is connected with the anode of the light-emitting diode, and the cathode of the light-emitting diode is grounded.
Optionally, the detection prompting module further includes a socket, where the socket includes a VCC pin, a GND pin, and a PUT pin;
the socket is used for connecting the detection prompting module and the receiving device.
Optionally, the detection prompting module further includes a zener diode and a first resistor;
and the cathode of the voltage stabilizing diode is connected with the PUT pin of the socket, and the voltage stabilizing diode is connected with the first resistor in series.
Optionally, the detection prompting module further includes a second resistor;
one end of the second resistor is connected with an emitting electrode of the second triode, and the other end of the second resistor is connected between a VCC pin of the socket and the power supply.
The embodiment also provides a detection device, which comprises the detection circuit of the receiving device, wherein the detection circuit of the receiving device comprises an attenuated infrared emission module, a detection prompt module and a power supply module;
the power input ends of the detection prompt module and the attenuation infrared emission module are connected with the power output end of the power supply module;
the attenuated infrared emission module is used for sending an infrared IR signal to the receiving device;
the detection prompting module is used for prompting an operator whether the receiving device is in a running state;
and the power supply module is used for supplying power to the detection prompt module and the attenuation infrared emission module.
The technical scheme of the utility model combines and matches the detection prompting module, the attenuation infrared transmitting module and the power supply module to form a detection device with simple application circuit and convenient operation, directly transmits an attenuated infrared IR signal to a receiving device to be detected through the attenuation infrared transmitting module, and detects whether a low-level signal output by the receiving device to be detected is received through the detection prompting module, because if the receiving device to be detected can receive the infrared IR signal and correspondingly output the low-level signal, the receiving function and the transmitting function of the receiving device to be detected can normally operate, the problems that the receiving device to be detected has poor performance and short receiving distance cannot be detected are solved, a tester only needs to observe whether the detection prompting module is lighted to know whether the receiving device to be detected can normally operate, and the inconvenience and the rapidness existing in the existing scheme of detecting the receiving device are avoided, Low efficiency and high cost.
Drawings
In order to more clearly illustrate the embodiments or technical solutions of the present invention, the drawings used in the embodiments or technical solutions of the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic diagram of a detection circuit of a receiving device according to the present invention;
fig. 2 is a schematic diagram of the connection of the internal circuit modules of the detection circuit of the receiving apparatus according to the present invention.
The reference numbers illustrate:
the implementation, functional features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used for explaining the relative position relationship between the components, the motion situation, and the like under a certain posture (as shown in the drawing), and if the certain posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between the embodiments may be combined with each other, but must be based on the realization of the technical solutions by a person skilled in the art, and when the technical solutions are contradictory to each other or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The utility model provides a detection circuit of a receiving device.
In an embodiment of the present invention, as shown in fig. 1, the detection circuit of the receiving apparatus includes a detection prompting module 20, an attenuated infrared emission module 10, and a power supply module 30;
the power input ends of the detection prompt module 20 and the attenuation infrared emission module 10 are connected with the power output end of the power supply module 30;
the attenuated infrared transmitting module 10 is configured to transmit the attenuated infrared IR signal to the receiving apparatus, so that the infrared IR signal is attenuated because in actual operation, the distance between the receiving apparatus and the transmitter is generally relatively long, and in an actual test process, if a detecting apparatus is designed according to an actual receiving and transmitting distance in order to simulate an actual receiving and transmitting distance, it is obviously impractical, so that in order to achieve convenience of the detecting apparatus and avoid misjudgment due to an excessively short receiving and transmitting distance, the transmitted infrared IR signal is attenuated in the present invention, so that the receiving and transmitting distance is increased, for example, the receiving and transmitting distance between the detecting apparatus and the receiving apparatus is set at 30cm, but due to the existence of the attenuated infrared transmitting module 10, the actual receiving and transmitting distance can reach 8 m;
the detection prompting module 20 is configured to supply power to the receiving device after power is turned on, receive a level signal output by the receiving device, and prompt an operator whether the receiving device can operate normally according to a state of the level signal;
the power supply module 30 is configured to supply power to the detection prompting module 20 and the attenuated infrared emission module 10.
Specifically, as shown in fig. 2, the attenuated infrared emission module 10 includes an attenuating resistor R1, a first transistor Q1, and an infrared emission diode D1;
one end of the attenuation resistor R1 is connected to the third pin of the control processing chip U1, the other end of the attenuation resistor R1 is connected to the base of the first triode Q1, wherein the attenuation resistor R1 is used to attenuate the high level sent by the control processing chip U1, so as to reduce the distance of the infrared IR signal sent by the emitting diode, and adjust the detection distance and the actual sending and receiving distance, the collector of the first triode Q1 is connected to the cathode of the infrared emitting diode D1, and the anode of the infrared emitting diode D1 is connected in series to the first capacitor C1 and the second capacitor C2;
the emitter of the first triode Q1 is grounded.
Further, the attenuated infrared emission module 10 further includes a control processing chip U1 and a crystal oscillator X1;
the 1 pin of the crystal oscillator X1 is connected with the first pin of the control processing chip U1, and the 2 pin of the crystal oscillator X1 is connected with the second pin of the control processing chip U1.
The crystal oscillator X1 is used to provide a clock frequency and an electrical signal to the control processing chip U1, so that the control processing chip U1 can enter an operating state.
Further, the attenuated infrared transmitting module 10 further includes a battery BAT and a switching device K;
the negative electrode of the battery BAT is grounded, and the positive electrode of the battery BAT is connected with one end of the switching device K and used for controlling the power supply state of the detection device.
Further, the attenuated infrared emission module 10 further includes a first capacitor C1 and a second capacitor C2;
the first capacitor C1 and the second capacitor C2 are connected in series at the other end of the switching device K and used for performing ripple filtering on a power supply output by the battery BAT to avoid electromagnetic interference.
In this embodiment, as shown in the attenuated infrared emission module 10 in fig. 2, after the user closes the switching device K, the power supply in the battery BAT can perform ripple filtering through the first capacitor C1 and the second capacitor C2, the filtered power supply flows into the pin 22 of the control processing chip U1 to supply power to the control processing chip U1, so that the crystal oscillator X1 connected to the control processing chip U1 starts oscillation, and the control processing chip U1 at this time formally enters a working state.
After the control processing chip U1 enters the operating state, when the pins 8 and 23 are connected and closed, the pin 12 is set out to output an instruction, and then a high level is output to the attenuation resistor R1, and the high level reaches the base of the first triode Q1 after passing through the attenuation resistor R1, so that the first triode Q1 is in saturated conduction.
Besides the power output by the battery BAT via the first capacitor C1 and the second capacitor C2 to the control processing chip U1, the power is also output to the infrared emitting diode D1 and the collector of the first transistor Q1 via the first capacitor C1 and the second capacitor C2, so that the power forms a loop, so that the infrared emitting diode D1 emits the attenuated infrared IR signal.
Specifically, as shown in fig. 2, the detection prompt module 20 further includes a second transistor Q2 and a light emitting diode D3;
the base electrode of the second triode Q2 is connected with the first resistor R2, the collector electrode of the second triode Q2 is connected with the anode of the light-emitting diode D3, and the cathode of the light-emitting diode D3 is grounded.
When the light emitting diode D3 is turned on, it indicates that the receiving device can normally receive the infrared signal.
Further, the detection prompt module 20 includes a socket CN1, and the socket CN1 includes a VCC pin, a GND pin and a PUT pin;
socket CN1 for connect detect prompt module 20 with receiving arrangement, VCC foot is used for with to the receiving arrangement who is connected with detection device power supply, and the PUT foot is used for receiving the level signal that receiving arrangement's OUT foot sent, and GND foot ground connection is used for guaranteeing the security of detection device in the use.
Further, the detection prompt module 20 further includes a zener diode D2 and a first resistor R2;
the cathode of the voltage stabilizing diode D2 is connected with the PUT pin of the socket CN1, the voltage stabilizing diode D2 can keep the voltage at two ends of the load to be basically unchanged and is connected in series with higher voltage, so that electronic components in the circuit can be protected, and the electronic components are prevented from being broken down by high level output by the PUT pin. The zener diode D2 is connected in series with the first resistor R2, in this embodiment, the first resistor R2 is a current limiting resistor for limiting the magnitude of the branch current, so as to prevent the high level from damaging the series-connected components.
Further, the detection prompt module 20 further includes a second resistor R3;
one end of the second resistor R3 is connected to the emitter of the second triode Q2, the other end of the second resistor R3 is connected to the VCC pin of the socket CN1 and between the power supplies, and the second resistor R3 is also a current-limiting resistor, so that the phenomenon that the power supply voltage output from the + V terminal is too large, and the circuit of the detection prompt module 20 is damaged is avoided.
In this embodiment, as shown in the detection prompting module 20 in fig. 2, the socket CN1 in this module is correspondingly connected to the pins in the socket of the receiving apparatus, that is, the GND pin and the VCC pin of the sockets at both ends are connected to the GND pin and the VCC pin, respectively, where the PUT pin in the detection prompting module 20 is connected to the OUT pin in the receiving apparatus for receiving the level signal sent by the receiving apparatus.
When the PUT pin of the detection prompt module 20 receives the low level output from the OUT pin of the receiving apparatus, the low level goes through the zener diode D2, the first resistor R2 does not work at this time, the base of the second transistor Q2 is at a low level, and therefore the base of the second transistor Q2 is at a low voltage at this time. The power output from the + V terminal reaches the emitter of the second triode Q2 through the third resistor, so the emitter is at a high voltage, because the base of the second triode Q2 is at a low voltage, the emitter and the collector of the second triode Q2 are directly conducted, the power output from the + V terminal flows into the light-emitting diode D3, and the light-emitting diode D3 performs a lighting operation after obtaining the voltage output from the second triode Q2, so as to prompt an operator that the receiving device can operate normally.
When the PUT pin of the detection and prompting module 20 receives a high level output from the OUT pin of the receiving apparatus, the high level breaks down the zener diode D2, so as to avoid damage to the circuit of the detection and prompting module 20 caused by the high level, the first resistor R2 starts to operate at this time, the high level is limited, the high level after current limitation flows into the base of the second triode Q2, and the base at this time is a high voltage. And the power supply output by the + V end still reaches the emitter of the second triode Q2 through the third resistor, so that the emitter is high-voltage, the emitter and the collector are disconnected at the moment, and the power supply of the + V end cannot reach the light-emitting diode D3 through the third resistor and the second triode Q2, so that the light-emitting diode D3 cannot be lighted at the moment, and when observing that the detection device does not light, an operator can obtain the information that the receiving device runs abnormally.
The embodiment further provides a detection apparatus, which includes the detection circuit of the receiving apparatus as described above, where the detection circuit of the receiving apparatus includes an attenuated infrared emission module 10, a detection prompt module 20, and a power supply module 30;
the power input ends of the detection prompt module 20 and the attenuation infrared emission module 10 are connected with the power output end of the power supply module 30;
the attenuated infrared transmitting module 10 is used for transmitting an infrared IR signal to a receiving device;
the detection prompting module 20 is configured to prompt an operator whether the receiving apparatus is in an operating state;
the power supply module 30 is configured to supply power to the detection prompting module 20 and the attenuated infrared emission module 10.
The specific structure of the detection apparatus refers to the above-mentioned embodiments, and since the detection apparatus employs all technical solutions of the embodiments of the detection circuit of the receiving apparatus, at least all beneficial effects brought by the technical solutions of the embodiments are achieved, and details are not repeated here.
The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the technical solutions of the present invention that are made by using the contents of the specification and the drawings or directly/indirectly applied to other related technical fields are included in the scope of the present invention.
Claims (10)
1. The detection circuit of the receiving device is characterized by comprising an attenuation infrared emission module, a detection prompt module and a power supply module;
the power input ends of the detection prompt module and the attenuation infrared emission module are connected with the power output end of the power supply module;
the attenuated infrared emission module is used for sending an infrared IR signal to a receiving device;
the detection prompting module is used for prompting an operator whether the receiving device is in a running state;
and the power supply module is used for supplying power to the detection prompt module and the attenuation infrared emission module.
2. The detection circuit of a receiving device according to claim 1, wherein the attenuated infrared emission module comprises an attenuating resistor, a first triode, and an infrared emission diode;
one end of the attenuation resistor is connected with the base electrode of the first triode, and the collector electrode of the first triode is connected with the negative electrode of the infrared emitting diode;
and the emitter of the first triode is grounded.
3. The detection circuit of a receiving device according to claim 2, wherein the attenuated infrared emission module further comprises a control processing chip and a crystal oscillator;
a pin 1 of the crystal oscillator is connected with a first pin of the control processing chip, and a pin 2 of the crystal oscillator is connected with a second pin of the control processing chip;
and a third pin of the control processing chip is connected with the other end of the attenuation resistor.
4. The detection circuit of a receiving device according to claim 3, wherein said attenuated infrared emission module further comprises a battery and a switching device;
the negative pole of the battery is grounded, and the positive pole of the battery is connected with one end of the switch device.
5. The detection circuit of a receiving device according to claim 4, wherein the attenuated infrared emission module further comprises a first capacitor and a second capacitor;
one end of the first capacitor and one end of the second capacitor are connected in series with the other end of the switching device, and the other ends of the first capacitor and the second capacitor are connected in series with the anode of the infrared emitting diode.
6. The detection circuit of the receiving device according to claim 1, wherein the detection prompting module comprises a second triode and a light emitting diode;
and the collector of the second triode is connected with the anode of the light-emitting diode, and the cathode of the light-emitting diode is grounded.
7. The detection circuit of a receiving device according to claim 6, wherein the detection prompting module further comprises a socket, the socket comprising a VCC pin, a GND pin, and a PUT pin;
the socket is used for connecting the detection prompting module and the receiving device.
8. The detection circuit of a receiving apparatus according to claim 7, wherein the detection prompting module further includes a zener diode and a first resistor;
and the cathode of the voltage stabilizing diode is connected with the PUT pin of the socket, and the voltage stabilizing diode is connected with the first resistor in series.
9. The detection circuit of a receiving device according to claim 8, wherein the detection hint module further comprises a second resistor;
one end of the second resistor is connected with an emitting electrode of the second triode, and the other end of the second resistor is connected between a VCC pin of the socket and the power supply.
10. A detection device, characterized in that it comprises a detection circuit of a receiving device according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220862862.5U CN217007727U (en) | 2022-04-14 | 2022-04-14 | Detection circuit and detection device of receiving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220862862.5U CN217007727U (en) | 2022-04-14 | 2022-04-14 | Detection circuit and detection device of receiving device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217007727U true CN217007727U (en) | 2022-07-19 |
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ID=82376136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220862862.5U Expired - Fee Related CN217007727U (en) | 2022-04-14 | 2022-04-14 | Detection circuit and detection device of receiving device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217007727U (en) |
-
2022
- 2022-04-14 CN CN202220862862.5U patent/CN217007727U/en not_active Expired - Fee Related
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Granted publication date: 20220719 |