Bluetooth earphone charging box indicating lamp detection tool circuit

Abstract

The utility model discloses a bluetooth earphone charging box indicating lamp detection tool circuit, which relates to the indicating lamp detection technology field, and comprises a main control circuit, a color detection circuit and an upper computer, the color detection circuit comprises a first MOS tube and a second MOS tube, the source electrode of the first MOS tube and the source electrode of the second MOS tube are respectively connected with the main control circuit, and the main control circuit is connected with the upper computer. The drain electrode of the first MOS tube and the drain electrode of the second MOS tube are connected to an upper computer, a second resistor is connected between the grid electrode and the source electrode of the first MOS tube, the grid electrode of the first MOS tube and the source electrode of the second MOS tube are connected with a first resistor, and the drain electrode of the first MOS tube and the drain electrode of the second MOS tube are connected to the second end of the third resistor and the second end of the fourth resistor respectively. The first MOS tube and the second MOS tube are matched together to realize bidirectional level conversion compatible transmission of different signals, data transmission between the color detection circuit and the main control circuit or between the color detection circuit and the upper computer is realized, the color of the lamp is detected through the color detection circuit, judgment and alarm are carried out, and the detection qualified rate of products is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of indicator light detection, and in particular to a tooling circuit for detecting an indicator light of a Bluetooth headset charging box. Background Art

[0002] In traditional indicator light color detection, the color detection circuit does not use the host computer to judge the color, and cannot more intuitively display the result of the indicator light color judgment. When considering the development of a working circuit with indicator light color identification, the main problem faced is that the level cannot be quickly converted in the signal processing of the color detection circuit, resulting in the color detection circuit being unable to better realize data transmission with the host computer or the main control circuit, resulting in low flexibility in color identification in the later stage. Utility Model Content

[0003] In order to realize the detection of the color function of the indicator light of the Bluetooth headset charging box, the utility model needs to design a tooling circuit for detecting the indicator light of the Bluetooth headset charging box.

[0004] A tooling circuit for detecting an indicator light of a Bluetooth headset charging box comprises a main control circuit, a color detection circuit and a host computer, wherein the color detection circuit comprises a first MOS tube and a second MOS tube, wherein the sources of the first MOS tube and the second MOS tube are respectively connected to the main control circuit, and the drains of the first MOS tube and the second MOS tube are respectively connected to the host computer, a second resistor is connected between the gate and the source of the first MOS tube, a first end of the second resistor is connected to a first power supply, a gate of the first MOS tube and the source of the second MOS are connected to a first resistor, a drain of the first MOS tube and the drain of the second MOS tube are respectively connected to the second end of a third resistor and the second end of a fourth resistor, and the first ends of the third resistor and the fourth resistor are commonly connected to the main power supply.

[0005] The Bluetooth headset charging box detection tooling circuit as described above includes an alarm control circuit including a voice decoding circuit electrically connected to the main control circuit, the voice decoding circuit is connected to the first end of the first capacitor, and the second end of the first capacitor is connected in series with the fifth resistor.

[0006] As described above, the Bluetooth headset charging box detection tooling circuit, the alarm control circuit includes a playback circuit connected to the voice decoding circuit, the playback circuit includes a speaker and a power amplifier IC for playing sound, and the signal input end and the signal output end of the power amplifier IC are connected in parallel with a sixth resistor.

[0007] The Bluetooth headset charging box detection tooling circuit as described above includes a power supply circuit, which includes a main power supply and a voltage regulator. The main power supply is connected to the input end of the voltage regulator, and the output end of the voltage regulator is connected to a second capacitor that stabilizes the voltage. The power supply circuit supplies power to the main control circuit.

[0008] The Bluetooth headset charging box detection tooling circuit as described above includes a lighting circuit connected to the main control circuit, wherein the lighting circuit includes a third MOS tube and an LED, wherein the gate of the third MOS tube is electrically connected to the input end of the main control circuit, the LED is connected to the drain of the third MOS tube and the positive electrode of the LED is electrically connected to the power supply.

[0009] As described above, in the Bluetooth headset charging box detection tooling circuit, the SCL port of the color detection circuit is electrically connected to the 3-port of the host computer, and the SDA port of the color detection circuit is connected to the 4-port of the host computer.

[0010] The Bluetooth headset charging box detection tooling circuit as described above includes a USB disk circuit connected to the alarm control circuit.

[0011] As described above, the Bluetooth headset charging box detection tooling circuit, the playback circuit includes a third capacitor connected to the power amplifier IC for stabilizing the voltage.

[0012] Compared with the prior art, the beneficial effects of this technical solution are:

[0013] The embodiment of the utility model provides an indicator light detection circuit. When the system is started, the first MOS tube and the second MOS tube on the color detection circuit cooperate to realize bidirectional level conversion and compatible transmission of different signals, thereby realizing data transmission between the color detection circuit and the main control circuit or the host computer. The color of the light is detected by the color detection circuit and the host computer makes a judgment and alarm, thereby effectively improving the flexibility of the product and the detection qualification rate.

[0014] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 This is a circuit principle block diagram of the indicator light detection tooling of the Bluetooth headset charging box of the first embodiment of the utility model.

[0017] Figure 2 This is a circuit schematic diagram of the indicator light detection tooling for the Bluetooth headset charging box of the second embodiment of the utility model. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] First embodiment:

[0020] like Figure 1 As shown, an embodiment of the utility model provides a tooling circuit for detecting an indicator light of a Bluetooth headset charging box, comprising a main control circuit 2, a color detection circuit 1, an alarm control circuit 5, a power supply circuit 6, a lighting circuit 4 and a host computer 8, wherein the power supply circuit 6 is used to provide power to the system, and the power supply circuit 6 can also output voltages of 3V and 5V, the main control circuit 2 is connected to the color detection circuit, the color detection circuit is used to detect the indicator light of the Bluetooth headset charging box, and the detected result will be transmitted to the host computer 8 for judgment, the main control circuit is also connected to a lighting circuit 4, the lighting circuit is used to compensate for the brightness of the light source in a dim environment, the alarm circuit also includes a voice decoding circuit 501 connected to the main control circuit 2, the voice decoding circuit is used to decode the voice data on the U disk circuit 7, and the voice decoding circuit 501 will transmit the decoded voice to the playback circuit 502 after decoding the voice, and play the alarm content.

[0021] Second embodiment:

[0022] like Figure 2As shown, the embodiment of the utility model provides a bluetooth headset charging box indicator light detection tooling circuit, including a main control circuit 2, a color detection circuit 1 and a host computer 8, the color detection circuit 1 includes a first MOS tube and a second MOS tube, the source of the first MOS tube and the second MOS tube are respectively connected to the main control circuit 2, the drain of the first MOS tube and the second MOS tube are respectively connected to the host computer 8, the gate of the first MOS tube and the source are connected with a second resistor, the first end of the second resistor is connected with a first power supply, the gate of the first MOS tube and the source of the second MOS are connected with a first resistor, the drain of the first MOS tube and the drain of the second MOS tube are respectively connected to the second end of the third resistor and the second end of the fourth resistor, and the first end of the third resistor and the fourth resistor are commonly connected to the main power supply. The embodiment of the utility model provides an indicator light detection circuit. When the system is started, the first MOS tube and the second MOS tube on the color detection circuit cooperate to realize bidirectional level conversion compatible transmission of different signals, realize the transmission of data between the color detection circuit and the main control circuit or the host computer, detect the color of the light through the color detection circuit and judge the alarm by the host computer, effectively improve the flexibility and detection qualification rate of the product.

[0023] As a specific solution and not a limitation, see Figure 2 As shown, in the color detection circuit 1, preferably, the MOS tube Q1 adopts an N-channel NMOS tube, the gate and source of Q1 are connected in parallel with a resistor R2, the resistor R1 is connected in parallel with the gate and source of Q1, the gate of Q1 is also electrically connected to the N-channel NMOS tube Q2 at the source of Q2, and Q1 and Q2 on the color detection circuit 1 can realize bidirectional level conversion to facilitate the color detection circuit 1 to transmit data with the host computer 8 or the main control circuit 2 respectively.

[0024] Furthermore, in order to ensure the stability of signal transmission, reduce noise interference, improve circuit performance and protect the chip from damage, the alarm control circuit 5 includes a voice decoding circuit 501 electrically connected to the main control circuit 2, and the voice decoding circuit 501 is connected to the first end of the first capacitor, and the second end of the first capacitor is connected in series with the fifth resistor in the circuit. Since the voice decoding circuit and the playback circuit are connected with capacitors and resistors, the capacitor can improve the stability of the signal and stabilize the power supply by filtering, while the resistor plays the role of current limiting protection and noise isolation.

[0025] Furthermore, in order to make the signal more stable, the alarm control circuit 5 includes a playback circuit connected to the voice decoding circuit 501, the playback circuit 502 includes a speaker and a power amplifier IC for playing sound, and a sixth resistor is connected in parallel to the signal input end and the signal output end of the power amplifier IC. The playback circuit includes a third capacitor connected to the power amplifier IC for stabilizing the voltage. The resistor can act as a current limiting protection circuit and can also reduce noise interference, and the capacitor plays a role in stabilizing the voltage.

[0026] As a specific solution but not limitation, in order to make the system circuit voltage more stable, the power supply circuit 6 includes a main power supply and a voltage regulator, the main power supply is connected to the input end of the voltage regulator, the output end of the voltage regulator is connected to a second capacitor for stabilizing the voltage, and the power supply circuit 6 supplies power to the main control circuit 2. The voltage regulator LDO reduces the voltage of the main power supply to 3.3V output.

[0027] Furthermore, in order to make the system still have a good detection effect when the light is dim, the Bluetooth headset indicator light detection tooling circuit includes a lighting circuit 4 connected to the main control circuit, and the lighting circuit 4 includes a third MOS tube and an LED. The gate of the third MOS tube is electrically connected to the input end of the main control circuit 2, and the LED is connected to the drain of the third MOS tube and the positive electrode of the LED is electrically connected to the power supply. Preferably, the third MOS tube adopts an N-channel MOS tube. When the gate voltage is greater than the source voltage, Q3 is turned on, and the LED lamp is lit to illuminate the environment.

[0028] Furthermore, in order to detect the indicator light of the Bluetooth headset charging box and determine whether the color is consistent, the SCL port of the color detection circuit 1 is electrically connected to the 3 port of the host computer 8, and the SDA port of the color detection circuit 1 is connected to the 4 port of the host computer 8. The host computer 1 is used to determine whether the color is correct. The general process is that the host computer controls the Bluetooth indicator light to emit different colors of light through the control circuit. The color detection circuit 1 of the utility model is close to the indicator light to be detected, and the system transmits the detection result to the host computer, and the host computer makes a judgment.

[0029] Furthermore, in order to enable the alarm control circuit 5 to play different alarm contents, the Bluetooth headset charging box indicator light detection tooling circuit includes a U disk circuit 7 connected to the alarm control circuit 5. The required voice alarm content is inserted into the U disk circuit 7 through the U disk, and then decoded by the voice decoding circuit 501 to achieve the playback of different alarm voice contents.

[0030] The circuit principle of the utility model is as follows: when it is necessary to detect the indicator light of the Bluetooth headset charging box, the host computer 8 controls the indicator light of the Bluetooth headset charging box to display different colors, and the system then detects the color of the indicator light, transmits the data to the host computer 1 through the I2C protocol for judgment and display, and when the color of the indicator light controlled by the host computer is consistent with the color detected by the system, the host computer will display PASS, and the main control circuit 2 will control the alarm circuit 5 to broadcast the pass; when the color of the indicator light controlled by the host computer 1 is inconsistent with the color detected by the system, the host computer 8 will display Fail, and the main control circuit 2 will control the alarm circuit 5 to broadcast Fail.

[0031] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A bluetooth headset charging box indicator light detection tooling circuit, characterized in that: The invention comprises a main control circuit (2), a color detection circuit (1) and a host computer (8), wherein the color detection circuit (1) comprises a first MOS tube and a second MOS tube, wherein the sources of the first MOS tube and the second MOS tube are respectively connected to the main control circuit (2), the drains of the first MOS tube and the second MOS tube are respectively connected to the host computer (8), a second resistor is connected between the gate and the source of the first MOS tube, a first end of the second resistor is connected to a first power supply, the gate of the first MOS tube and the source of the second MOS are connected to the first resistor, the drain of the first MOS tube and the drain of the second MOS tube are respectively connected to the second end of a third resistor and the second end of a fourth resistor, and the first ends of the third resistor and the fourth resistor are commonly connected to the main power supply.

2. The bluetooth headset charging box indicator light detection tooling circuit according to claim 1, characterized in that: The alarm control circuit (5) includes a voice decoding circuit (501) electrically connected to the main control circuit (2), wherein the voice decoding circuit (501) is connected to the first end of a first capacitor, and the second end of the first capacitor is connected in series with a fifth resistor.

3. The bluetooth headset charging box indicator light detection tooling circuit according to claim 2, characterized in that: The alarm control circuit (5) comprises a playback circuit connected to the voice decoding circuit (501), the playback circuit (502) comprises a loudspeaker and a power amplifier IC for playing sound, and a sixth resistor is connected in parallel to a signal input terminal and a signal output terminal of the power amplifier IC.

4. The bluetooth headset charging box indicator light detection tooling circuit according to claim 1, characterized in that: The invention comprises a power supply circuit (6), wherein the power supply circuit (6) comprises a main power supply and a voltage stabilizer, wherein the main power supply is connected to an input end of the voltage stabilizer, and an output end of the voltage stabilizer is connected to a second capacitor for stabilizing voltage, and the power supply circuit (6) supplies power to a main control circuit (2).

5. The bluetooth headset charging box indicator light detection tooling circuit according to claim 1, characterized in that: The invention comprises a lighting circuit (4) connected to a main control circuit, the lighting circuit (4) comprising a third MOS tube and an LED, the gate of the third MOS tube being electrically connected to the input end of the main control circuit (2), the LED being connected to the drain of the third MOS tube and the positive electrode of the LED being electrically connected to a power source.

6. The bluetooth headset charging box indicator light detection tooling circuit according to claim 1, characterized in that: The SCL port of the color detection circuit (1) is electrically connected to the 3-port of the host computer (8), and the SDA port of the color detection circuit (1) is connected to the 4-port of the host computer (8).

7. The bluetooth headset charging box indicator light detection tooling circuit according to claim 3, characterized in that: It comprises a U disk circuit (7) connected to the alarm control circuit (5).

8. The bluetooth headset charging box indicator light detection tooling circuit according to claim 3, characterized in that: The playing circuit includes a third capacitor connected to the power amplifier IC for stabilizing the voltage.

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