TWI640793B - Power button test system and method thereof - Google Patents

Abstract

A power button test system and method for detecting a power button of a test machine. The method comprises: sensing the test machine in a power-on state or a power-off state; if it is in a power-off state, controlling a monostable timing circuit to be turned on; the monostable timing circuit is counting down a preset time; and when the preset time is counted down to zero Turn on the power button to simulate a press power button action.

Description

Power key test system and method

The invention relates to a power button test system and method.

As far as the prior art is concerned, the test procedure of the power button is usually performed by using a software with a Basic Input and Output (BIOS) system, so that the user does not actually embody and simulate the actual pressing of the power button to start or wake up. The machine moves, causing some unforeseen problems to occur after shipment.

The invention provides a power key test system and method. In the initial stage of electronic product development and before shipment, the multi-test mode of the power button is added, which is closer to the user's operation mode, so as to discover unknown product problems and improve the product yield. In this case, a simple logic circuit and a resistor-capacitor charging and discharging circuit can be used to achieve verification test, and the cost is low. The case can also be developed using a micro control unit or a programmable logic device to modularize and reduce the size.

One embodiment of the present invention provides a power key test system for detecting whether a power button of a test machine can be used normally. The power button test system includes a control module and an analog module. The control module is connected to the testing machine, and the control module includes a first relay, and the first relay senses that the testing machine is in a power on state or a power off state. The analog module is coupled to the control module, and the analog module includes a monostable timing circuit and a second relay. When the first relay senses that the current test machine is in the off state, the first relay controls the monostable timing circuit to be turned on, and the monostable timing circuit counts down for a preset time. The second relay is coupled to the monostable timing circuit. When the monostable timing circuit counts down to a preset time to zero, the monostable timing circuit outputs a switching signal to the second relay, and the second relay turns on the power button according to the switching signal. Simulate pressing the power button action.

An embodiment of the present invention provides a power key test method for detecting whether a power button of a test machine can be used normally. The method includes: sensing the test machine in a power-on state or a power-off state; if in the power-off state, controlling a monostable timing circuit to be turned on; the monostable timing circuit is counting down a preset time; and when the monostable timing circuit Count down the preset time to zero, turn on the power button to simulate a press power button action.

The embodiments of the present invention are disclosed in the following drawings, and the details of However, it should be understood that these practical details are not intended to limit the invention. That is, in some embodiments of the invention, these practical details are not necessary. In addition, some of the conventional structures and elements are shown in the drawings in a simplified schematic manner in order to simplify the drawings.

The invention provides a power button test system and method for detecting whether a power button of a test machine can be used normally. 1 is a functional block diagram of a power button test system according to a first embodiment of the present invention. The power button test system 100 is configured to detect whether the power button 112 of the test machine 110 can be used normally. The test machine 110 is powered by the power supply device 120. The power supply device 120 can be a power supply or a mains input. The test machine 110 can be a computer or other similar electronic device. The power button test system 100 includes a control module 130 and an analog module 140. The control module 130 and the analog module 140 are coupled to each other. The control module 130 is connected to the first universal serial bus port 114 (USB) of the testing machine 110, and the analog module 140 is connected to the second universal serial bus port 116 of the testing machine 110. When the test machine 110 is in the power-on state, the first universal sequence bus port 114 is powered. When the test machine 110 is in the power-off state, the first universal sequence bus port 114 is not powered, and the second universal sequence bus port 116 is Continuous power supply.

The control module 130 includes a first relay 132 and a first lighting unit 134. The analog module 140 includes a monostable timing circuit 150, a second lighting unit 160, and a second relay 170. The monostable timing circuit 150, the second lighting unit 160, and the second relay 170 are serially connected in series. The monostable timing circuit 150 includes a capacitor unit 152, a resistor unit 154, and a timing unit 156.

FIG. 2 is a flow chart showing a power key test method according to the first embodiment of the present invention. Please refer to FIG. 1 and FIG. 2 at the same time. First, it is judged whether the test machine 110 is in the off state (step S210), and the first relay 132 in the control module 130 first senses that the test machine 110 is currently in the power on state or the power off state. The first relay 132 can be regarded as an electronic switch. The powering on or off state of the testing machine 110 will affect the first relay 132, so that the first relay 132 has different circuit conduction conditions.

The first light emitting unit 134 included in the control module 130 is connected to the first relay 132 in parallel. When the testing machine 110 is in the power-on state, the first lighting unit 134 is turned on. When the testing machine 110 is in the power-off state, the first lighting unit 134 does not emit light, thereby reminding the tester that the testing machine 110 is currently in the power-on state or the power-off state.

As described above, if the determination in step S210 is YES, the first relay 132 senses that the current test machine 110 is in the off state, then the circuit between the first relay 132 and the analog module 140 is turned on, that is, the control monostable The timer circuit 150 is turned on (step S220). On the other hand, if the determination in step S210 is NO, indicating that the test machine 110 is currently in the on state, the first relay 132 controls the monostable timer circuit 150 to be non-conductive (step S215), and the control module 130 continues to sense the tester. Whether the state of the switch of 110 has changed.

After step S220, the monostable timer circuit 150 counts down a predetermined time (step S230). The monostable timing circuit 150 includes a capacitor unit 152, a resistor unit 154, and a timing unit 156. The capacitor unit 152, the resistor unit 154, and the timing unit 156 are coupled to each other. When the first relay 132 controls the monostable timer circuit 150 to be turned on, the timing unit 156 counts down the preset time, wherein the preset time is determined by the capacitance value of the capacitor unit 152 and the resistance value of the resistor unit 154.

Next, the one-shot timing circuit 150 determines whether the preset time is counted down to zero (step S240). If the determination in the step S240 is NO, the countdown is continued. If the determination in the step S240 is YES, the monostable timer circuit 150 outputs a switching signal to the second relay 170, and the second relay 170 turns on the power button 112 according to the switching signal to simulate the pressing of the power button operation (step S250).

The second relay 170 can also be regarded as an electronic switch. Whether the one-shot timer circuit 150 sends a switching signal will affect whether the second relay 170 triggers the power button 112 of the testing machine 110. For example, one of the pins of the second relay 170 can be connected to the power button 112 of the test machine 110. When the second relay 170 receives the switching signal sent by the monostable timer circuit 150, the second relay 170 The power button 112 is then triggered. When the power button 112 is triggered and the test machine 110 is turned on, the first relay 132 controls the monostable timer circuit 150 to be non-conductive.

In addition, the second light emitting unit 160 included in the analog module 140 is connected in series between the monostable timer circuit 150 and the second relay 170. When the monostable timer circuit 150 is turned on, the second light emitting unit 160 is turned on. When the second lighting unit 160 is turned on, the tester is reminded that the monostable timer circuit 150 has sent the switching signal to the second relay 170.

The invention provides a power key test system and method. In the initial stage of electronic product development and before shipment, the multi-test mode of the power button is added, which is closer to the user's operation mode, so as to discover unknown product problems and improve the product yield. In this case, a simple logic circuit and a resistor-capacitor charging and discharging circuit can be used to achieve verification test, and the cost is low. The case can also be developed using a micro control unit or a programmable logic device to modularize and reduce the size.

While the invention has been described above in terms of various embodiments, it is not intended to limit the invention, and the invention may be modified and modified without departing from the spirit and scope of the invention. The scope of protection is subject to the definition of the scope of the patent application attached.

100‧‧‧Power Key Test System

110‧‧‧Tester

112‧‧‧Power button

114‧‧‧First universal sequence bus port

116‧‧‧Second universal serial bus port

120‧‧‧Power supply equipment

130‧‧‧Control Module

132‧‧‧First relay

134‧‧‧first lighting unit

140‧‧‧simulation module

150‧‧‧monostable timing circuit

152‧‧‧Capacitor unit

154‧‧‧resistance unit

156‧‧‧Time unit

160‧‧‧second lighting unit

170‧‧‧Second relay

S210~S250‧‧‧Power key test method flow steps

FIG. 1 is a functional block diagram of a power key test system according to a first embodiment of the present invention. FIG. 2 is a flow chart showing a power key test method according to the first embodiment of the present invention.

Claims (7)

A power button test system for detecting whether a power button of a test machine can be used normally. The power button test system includes: a control module connected to the test machine, including: a first relay, sensing the The test machine is in a power-on state or a power-off state; and an analog module is coupled to the control module, the analog module includes: a monostable timing circuit, when the first relay senses the current test machine In the off state, the first relay controls the monostable timing circuit to be turned on, the monostable timing circuit is counted down by a preset time; and a second relay is coupled to the monostable timing circuit when the The monostable timing circuit counts down the preset time to zero. The monostable timing circuit outputs a switching signal to the second relay, and the second relay turns on the power button according to the switching signal to simulate a pressing power button action. The power key test system of claim 1, wherein when the second relay turns on the power button according to the switching signal, the test machine is in the power-on state, and the first relay controls the one-shot timing circuit to Not conductive. The power button test system of claim 1, wherein the control module further comprises: a first lighting unit, the first relay is connected in parallel, and when the testing machine is in the power-on state, the first lighting unit is turned on. The power key test system of claim 1, wherein the analog module further comprises: a second light emitting unit connected in series between the monostable timing circuit and the second relay, when the monostable timing circuit To be turned on, the second light emitting unit turns on the light. The power key test system of claim 1, wherein the one-shot timing circuit comprises: a capacitor unit; a resistor unit coupled to the capacitor unit; and a timing unit coupled to the capacitor unit and the The resistor unit, when the first relay controls the monostable timing circuit to be turned on, the timing unit counts down the preset time, wherein the preset time is determined by a capacitance value of the capacitor unit and a resistance value of the resistor unit. The power key test system of claim 1, wherein the control module is connected to the test machine through a universal serial bus port. For example, in the power key test system of claim 1, wherein the analog module is connected to the test machine through a universal serial bus port.