TWM541166U - A cable detecting device - Google Patents

Abstract

The present invention is related to a cable detecting device including a signal generating module and a signal receiving and processing module. Among this, the signal receiving and processing module includes an arithmetic module and an equalizer. And the signal receiving and processing module receives a test signal generated from the signal generating module by way of a test cable so as to generate a plurality of detecting parameter values. Moreover, the arithmetic module computes at least a part of detecting parameter values of the detecting parameter values for generating an arithmetic result. Among this, when the arithmetic result satisfies one of a plurality of benchmark conditions, the signal receiving and processing module will generate a detecting result. If not, the equalizer will generates at least one dynamic compensation value for reproducing at least a part of detecting parameter values of another detecting parameter values. The signal receiving and processing module will also generate another arithmetic result to satisfy another one of the plurality of benchmark conditions so as to generate another detecting result.

Description

Wire detecting device

The present invention relates to a wire detecting device, in particular, conforming to the specification of a High Definition Multimedia Interface (HDMI).

In recent years, the High Definition Multimedia Interface (HDMI) has become the main audio and video transmission interface for various audio and video input and output devices. Therefore, in order to meet the demand for high definition multimedia interface (HDMI) cables, manufacturers must detect HDMI cables of various quality and performance to identify user needs and price ranges.

Among them, the conventional HDMI cable is an Eye Diagram Test by a network analyzer, and the eye diagram is a time series analysis tool, so that the test result can clearly show the error of time and signal intensity. This allows analysis and evaluation of cable quality and performance.

Furthermore, the eye diagram test is an electrical test of a cable. The eye diagram presented by the network analyzer is used to identify the maximum jitter and the voltage intensity error, and is determined according to the shape of the eye diagram. HDMI cable products Quality and efficiency.

However, there are still many shortcomings in the conventional eye diagram test. For example, the time taken to test the quality of the HDMI cable is too long (the detection time is too long), and the detection time takes several hours or more. Furthermore, since the eye diagram is superimposed with a plurality of trigger signals generated by the plurality of trigger signals, the eye diagram is displayed by a user interface (UI), so that the triggering jitter of the network analyzer itself is easily caused during the triggering process. Also included in the eye diagram, resulting in a decrease in detection accuracy. And, how to accurately synchronize the triggers so that the value of each trigger is arranged at the corresponding trigger point.

In this way, how to reduce the cost of detection, effectively reduce the detection time, and improve the accuracy of detecting the quality of the HDMI cable is the problem that needs to be solved.

The purpose of the present invention is to provide a wire detecting device and a method thereof to solve the problems of the prior art.

In order to achieve the above object, the present invention provides a wire detecting device comprising: a signal generating module for providing a test signal; and a signal receiving and processing module comprising at least an equalizer and an arithmetic module. The signal receiving and processing module is electrically connected to the signal generating module by a wire to be tested to receive the test signal and generate a plurality of detecting parameter values, and the computing module inputs at least a part of the detected parameter values. Detecting a parameter value to generate an operation result; wherein, when the operation result meets one of the complex reference conditions, the signal receiving and processing module generates a detection result, or the operation result does not meet the reference conditions In this case, the equalizer generates at least one dynamic compensation value, and the signal receiving and processing module is required to be at least one dynamic The compensation value produces another complex detection parameter value, and in turn causes the operation module to operate to obtain another operation result, thereby reconfirming whether the other operation result meets the other of the reference conditions.

Preferably, the detection parameter values are generated by the signal receiving and processing module according to a High Definition Multimedia Interface (HDMI) protocol specification; wherein the high quality multimedia interface comprises a plurality of transmission channel interfaces .

Preferably, any one of the at least partially detected parameter values is a signal error detection (Character Error Detection) procedure in the high-definition multimedia interface protocol specification of the signal receiving and processing module. One of the corresponding transmission channel interfaces of the transmission channel interface may generate a corresponding data error rate parameter value (Data Error Rate).

Preferably, the transmission channel interfaces comprise three transmission channel interfaces, and the three transmission channel interfaces respectively have a corresponding one of the first channel data error rate parameter values (CH0) and a second channel data error rate. The parameter value (CH1) and a third channel data rate error parameter value (CH2).

Preferably, the operation result is a sum of at least a part of the detected parameter values in the Data Error Rate.

Preferably, the equalizer is for reducing or amplifying the test signal attenuated by the wire to be tested.

Preferably, the test signal is an image test signal.

Preferably, the image transmission output interface is electrically connected to the signal receiving and processing module, and the image transmission output interface is electrically connected to a display device.

Preferably, the display device is displayed by a user interface The detection parameter values and the detection result are displayed, or the other detection parameter values, the at least one dynamic compensation value, and the other detection result are displayed.

Preferably, the reference conditions further include a first reference condition, a second reference condition, a third reference condition, and a fourth reference condition for identifying the quality of the wire to be tested.

10‧‧‧Wire detection device

100‧‧‧Signal Generation Module

200‧‧‧Signal Receiving and Processing Module

210‧‧‧ Computing Module

220‧‧‧Equalizer

310‧‧‧Signal output port埠

320‧‧‧Signal input port埠

400‧‧‧Image transmission output interface

500‧‧‧ display device

510‧‧‧User interface

A‧‧‧ test signal

A1, A2, A3, A4‧‧‧ Test signals due to the attenuation of the wire to be tested

B, B1, B2, B3, B4‧‧‧ test parameter values

C, C1, C2, C3, C4‧‧‧ results

D, D1, D2, D3, D4‧‧‧ dynamic compensation value

E, E1, E2, E3, E4‧‧‧ test results

L1, L2, L3, L4‧‧‧ wire to be tested

L1a, L2a, L3a, L4a‧‧‧ input of the wire to be tested

L1b, L2b, L3b, L4b‧‧‧ output of the wire to be tested

T‧‧‧Test time

Fig. 1A is a block diagram showing a wire detecting device of the present invention in a preferred embodiment.

FIG. 1B is a schematic diagram of a user interface presented by the display device shown in FIG. 1A.

The following is a detailed description of the embodiments, which are intended to be illustrative only and not to limit the scope of the invention. In addition, the drawings in the embodiments omit elements that are unnecessary or can be completed by the usual techniques to clearly show the technical features of the present invention.

Please refer to FIG. 1A and FIG. 1B. FIG. 1A is a block diagram of a wire detecting device of the present invention in a preferred embodiment. FIG. 1B is a schematic diagram of a user interface presented by the display device shown in FIG. 1A.

As shown in FIG. 1A, the present invention first provides a wire detecting device 10 including at least a signal generating module 100, a signal receiving and processing module 200, a complex signal output port 310, a complex signal input port 320, and image transmission. The output interface 400; wherein the signal generating module 100 is electrically connected to the The signal output and connection module 200 is electrically connected to the signal input port 320, and the signal receiving and processing module 200 further includes an operation module 210 and an equalizer 220. The image transmission output interface 400 is used for The plurality of detection signals from the signal receiving and processing module 200 are electrically connected and received.

In addition, the signal output port 310 of the wire detecting device 10 and the signal input port 320 are electrically connected to the input terminals L1a, L2a, L3a, L4a and the output terminal L1b of the plurality of wires L1, L2, L3, and L4, respectively. L2b, L3b, L4b to detect the quality and performance of the wires L1, L2, L3, L4 to be tested. The image transmission output interface 400 of the wire detecting device 10 is electrically connected to a display device 500 having a user interface 510.

The signal generating module 100 is configured to provide the test signal A, and the signal receiving and processing module 200 is configured to receive the test signals A1, A2, and A3 that are attenuated by the wires L1, L2, L3, and L4 to be tested. A4. Thereafter, the display device 500 receives the complex detection signals by the image transmission output interface 400 according to the test signals A1, A2, A3, and A4.

As shown in FIG. 1A and FIG. 1B, the user interface 510 of the display device 500 is configured to display the detection signals; wherein the detection signals include at least a plurality of detection parameters corresponding to the wires L1, L2, L3, and L4 to be tested. Value B, operation result C, dynamic compensation value D, and detection result E.

Next, how the wire detecting device 10 of the present invention detects the quality of the wires L1, L2, L3, and L4 to be tested. First, in the present example, the reference condition for detecting the wire to be tested includes at least a first reference condition, a second reference condition, a third reference condition, and a fourth reference condition; wherein the reference conditions are respectively excellent for the detection result E ( EXCELLENT), good (GOOD), normal (NORMAL) and inferior (POOR) four qualities.

Next, the operation and connection relationship of each of the above elements will be described. First of all, The input terminals L1a, L2a, L3a, L4a and the output terminals L1b, L2b, L3b, L4b of the wires L1, L2, L3, L4 to be tested are electrically connected to the signal output port 310 of the wire detecting device 10 and the signal input port respectively. 320, and perform the following steps: Step S11: transmitting the test signal A to the signal receiving and processing module 200 via the wires L1, L2, L3, and L4 to be tested; wherein the test signal A is from the signal generating module 100, and the wire to be tested L1, L2, L3, L4 are electrically connected between the signal generating module 100 and the signal receiving and processing module 200 via the signal output port 310 and the signal input port 320; step S12: by the wire L1 to be tested, L2, L3, L4 receive test signals A1, A2, A3, A4, waiting for a detection time (T), for example: 5 seconds, 10 seconds, 15 seconds, 20 seconds or 25 seconds, so that the signal receiving and processing module 200 The multi-detection parameter value B is generated in response to the step S13: the operation module 210 calculates at least part of the detection parameter values CH0, CH1, and CH2 by the operation module 210, so that the signal receiving and processing module 200 generates a Operation result C; Step S14: determining whether the operation result C meets one of the aforementioned reference conditions.

When the operation result C meets one of the reference conditions, step S15 is executed: the signal receiving and processing module 200 generates a corresponding detection result E according to the operation result C; If the C does not meet one of the reference conditions, step S21 is performed to drive the equalizer 220 of the signal receiving and processing module 200 to generate at least one dynamic compensation value D; step S22: at least one dynamic compensation a value D, such that the signal receiving and processing module 200 regenerates another complex detection parameter value B to conform to the other of the reference conditions; and step S23: the operation is performed because the other parameter values B are detected. The module 210 recalculates to generate another operation result C; and step S24: the signal receiving and processing module 200 regenerates another detection result E in response to another operation result C.

Next, it is more clearly explained how to identify the quality of the wire to be tested that meets the above four benchmark conditions.

Referring to FIG. 1A and FIG. 1B, first, the signal output port 310 of the wire detecting device 10 and the signal input port 320 are electrically connected to the input terminals L1a, L2a, L3a of the four wires L1, L2, L3, and L4, respectively. The L4a and the output terminals L1b, L2b, L3b, and L4b are used to cause the signal generating module 100 to respectively transmit the test signal A to the output terminal electrically connected to the signal receiving and processing module 200 via the input terminals L1a, L2a, L3a, and L4a. L1b, L2b, L3b, L4b, to detect that the wire to be tested L1, L2, L3, L4 meets one of the plural reference conditions, thereby being able to identify the quality of the corresponding one of the reference conditions; In the example, the test signal A is an image test signal, which is an image data.

In addition, as described above, the first reference condition among the reference conditions is excellent (EXCELLENT), and the judgment parameter value is less than 1000 (<1000); the second reference condition is good (GOOD), and the judgment parameter value is determined. It is less than 100 (<100); the third reference condition is normal (NORMAL), and the judgment parameter value is less than 10 (<10); the fourth reference condition is inferior (POOR), and the judgment parameter value is 10, for example Note that if it is judged that the parameter value is greater than 10 (>10), it is inferior (POOR), but if it is judged that the parameter value is less than 10 (<10), it is normal (NORMAL).

Of course, the setting of these reference conditions should not be limited by this example, and can be distinguished according to the actual needs of detecting the quality of the wire. Moreover, each of the above-mentioned judgment parameter values may be variously changed or designed by those skilled in the art, and are also within the scope of the present invention.

In particular, since the test signal A attenuates its signal strength by transmitting through different wires L1, L2, L3, and L4, the signal receiving and processing module 200 corresponds to different wires L1, L2, and L3 to be tested. , L4 and receive different test signals A1, A2, A3, A4. Therefore, the quality of the corresponding wire L1, L2, L3, L4 to be tested is identified by receiving the corresponding configuration (configuration) of the test signals A1, A2, A3, A4 and the equalizer 220 of different signal strengths.

Further, the equalizer 220 is configured to restore or amplify the test signals A1, A2, A3, and A4 attenuated by the wires L1, L2, L3, and L4 to be tested, and the dynamic compensation value D is the equalizer 220 restore or Amplifying the parameter values of the signal intensity levels of the test signals A1, A2, A3, and A4, for example, when the dynamic compensation value D is 9, which indicates that the equalizer 220 is the level that provides the lowest signal strength; otherwise, if the dynamic compensation value D is 0. It represents the equalizer 220 as the level that provides the highest signal strength. Of course, the setting and definition of the dynamic compensation value D can be changed according to user requirements or system requirements, and is not limited by this example.

In detail, the wire L1 to be tested is first mentioned to explain its quality. As shown in FIG. 1A and FIG. 1B, step S31: the signal generating module 100 transmits a test signal A to the signal receiving and processing module 200 via the wire L1 to be tested; step S32: waiting for a detection time (T), for example 10 seconds for the equalizer 220 to generate the first dynamic compensation D1 of 9 due to the provision of the lowest signal strength level, and the complex detection parameter value is generated according to the received test signal A1 and the equalizer 220 providing the lowest signal strength level; S33: The operation module 210 in the signal receiving and processing module 200 adds at least part of the detection parameter values B1 to generate an operation result C1; and step S34: determines whether the operation result C1 meets the first Benchmark conditions.

In step S33, as shown in FIG. 1B, the at least partially detected parameter value B1 includes at least a first detected parameter value (CH0), a second detected parameter value (CH1), and a third detected parameter value (CH2); wherein, the first detection The parameter value (CH0) is 0, the second detection parameter value (CH1) is 26, the third detection parameter value (CH2) is 555, and the operation module 210 will have three detection parameter values (CH0) (CH1) (CH2). After the summation, the operation result C1 is 581. Next, step S34 is executed to determine whether the operation result C1 meets the first reference condition, which is whether the operation result C1 is 581 or less than the determination parameter value 1000.

According to the operation result of the step S34, the first reference condition is met, Therefore, the step S35 is performed: the signal receiving and processing module 200 generates the first detection result E1 is excellent (EXCELLENT), and the user interface 510 of the display device 500 is displayed as excellent in the field of the detection result E1 of the wire L1 to be tested. (EXCELLENT), as shown in Figure 1B.

On the other hand, if the result of the operation of step S34 is that the first reference condition is not met, the flow of the process subsequent to FIG. 3B will be as follows. Please refer to Figure 3B for the connection. The quality of the wire L2 to be tested will be explained. The wire detecting device 10 performs step S41: waiting for a detection time (T), for example, 15 seconds, to drive the equalizer 220 to generate the second dynamic compensation value D2, and then regenerating the second complex detection parameter value; step S42: operation mode The group 210 adds at least a part of the second detection parameter values B2 to generate a second operation result C2; and step S43: determines whether the second operation result C2 meets the second reference condition.

In step S42, the first detection parameter value (CH0), the second detection parameter value (CH1), and the third detection parameter value (CH2) of the parameter value B2 are at least partially detected; wherein the first detection parameter value (CH0) is 43 The second detection parameter value (CH1) is 23, and the third detection parameter value (CH2) is 5, and the operation module 210 adds up the three detection parameter values (CH0) (CH1) (CH2) to generate an operation result. C2 is 71. Next, step S43 is executed to determine whether the second operation result C2 meets the second reference condition, which is whether the operation result C2 is 71 or less than the determination parameter value 100.

The result of the operation in step S43 is that the second reference condition is met. Therefore, step S44 is performed: the signal receiving and processing module 200 generates the second detection result E2 as good (GOOD), and the user interface 510 of the display device 500 is in the test. The result of the detection result E2 of the wire L2 is shown as good (GOOD).

On the other hand, if the result of the operation in step S43 is that the second reference condition is not met, the flow of the process subsequent to FIG. 3C is as follows. Please refer to Figure 3C for the connection. The quality of the wire L3, L4 to be tested will be explained. Wire detecting device 10 Step S51: Waiting for a detection time (T), for example, 20 seconds, driving the equalizer 220 to generate a third dynamic compensation value D3 to regenerate the third complex detection parameter value; Step S52: The operation module 210 adds the third At least part of the detected parameter values detects the parameter value B3 to generate a third operation result C3; and step S53: determines whether the third operation result C3 meets the third reference condition.

In step S52, the first detection parameter value (CH0), the second detection parameter value (CH1), and the third detection parameter value (CH2) of the parameter value B3 are at least partially detected; wherein the first detection parameter value (CH0) is 3 The second detection parameter value (CH1) is 1, and the third detection parameter value (CH2) is 1, and the operation module 210 adds the three detection parameter values (CH0) (CH1) (CH2) to generate an operation result. C3 is 5. Next, step S53 is executed to determine whether the third operation result C3 meets the third reference condition, which is whether the operation result C3 is 5 or less than the determination parameter value 10.

Step S54: The signal receiving and processing module 200 generates the third detection result E3 as normal (NORMAL), and the user interface 510 of the display device 500 is in the test. The detection result of the wire L3 is shown as normal in the field of E3 (NORMAL).

On the other hand, if the result of the operation in step S53 is that the third reference condition is not met, referring to FIG. 1B, the signal receiving and processing module 200 can wait for a detection time (T) according to the above process, for example, 20 seconds. The fourth dynamic compensation value D4 for driving the equalizer 220 to generate the highest signal strength level is 0, and the at least partial detection parameter value B4 of the fourth complex detection parameter value is obtained in the previous step, as shown in FIG. 1B. 17, 4, and 3 are shown, and the fourth operation result C4 is 24 again.

After that, it is judged whether the fourth operation result C4 is within the range of whether the judgment parameter value of the fourth reference condition is 10 or not, and the fourth operation result C4 is 24 or more than the judgment parameter value of 10, and the wire L4 to be tested is determined. Four test results E4 is inferior (POOR). Of course, if the fourth operation result C4 is less than the determination parameter value 10, it can be determined that the fourth detection result E4 of the wire L4 to be tested is normal (NORMAL).

Or, in step S53: determining that the third operation result C3 is not in compliance with the third reference condition, step S55 may be directly executed: the signal receiving and processing module 200 generates a fourth detection result E4, and the fourth detection result E4 is POOR, as shown in Figure 1B, the wire L4 to be tested.

It should be particularly noted that the foregoing detection parameter values are generated by the signal receiving and processing module 220 according to a High Definition Multimedia Interface (HDMI) protocol specification, for example, a high-definition multimedia interface ( The HMDI) protocol specification is 2.0 or higher; wherein the high quality multimedia interface includes a complex transmission channel interface.

Furthermore, the at least part of the detection parameter values B, B1, B2, B3, B4 is a signal reception and processing module 220 responsive to one of the characteristics of the High Definition Multimedia Interface (HDMI) protocol specification. (Character Error Detection) program, which corresponds to one of the transmission channel interfaces of any of the transmission channel interfaces to generate a data error rate parameter value (Data Error Rate).

Therefore, the transmission channel interfaces include three transmission channel interfaces, and the three transmission channel interfaces respectively have a first channel data error rate parameter value (CH0), a second channel data error rate parameter value (CH1), and A third channel data rate error parameter value (CH2).

It can be seen from the above description that the first detection parameter value, the second detection parameter value and the third detection parameter value in the present case are the first channel data error rate parameter value (CH0), the second channel data error rate parameter value (CH1), and The third channel data rate error parameter value (CH2). Thus, the present case mainly provides the sum of the three channel data rate error parameter values (CH0) (CH1) (CH2) and the equalizer 220. The received signal strength levels of the test signals A1, A2, A3, and A4 can determine the quality of the wires L1, L2, L3, and L4 to be tested according to the complex reference conditions, thereby reducing the detection cost and effectively reducing the detection time (T ) and improve the accuracy of detecting HDMI cable quality.

The above description is only the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Therefore, any equivalent changes or modifications made without departing from the spirit of the present invention should be included in the present case. Within the scope of the patent application.

10‧‧‧Wire detection device

100‧‧‧Signal Generation Module

200‧‧‧Signal Receiving and Processing Module

210‧‧‧ Computing Module

220‧‧‧Equalizer

310‧‧‧Signal output port埠

320‧‧‧Signal input port埠

400‧‧‧Image transmission output interface

500‧‧‧ display device

510‧‧‧User interface

A‧‧‧ test signal

A1, A2, A3, A4‧‧‧ Test signals due to the attenuation of the wire to be tested

B, B1, B2, B3, B4‧‧‧ test parameter values

C, C1, C2, C3, C4‧‧‧ results

D, D1, D2, D3, D4‧‧‧ dynamic compensation value

E, E1, E2, E3, E4‧‧‧ test results

L1, L2, L3, L4‧‧‧ wire to be tested

L1a, L2a, L3a, L4a‧‧‧ input of the wire to be tested

L1b, L2b, L3b, L4b‧‧‧ output of the wire to be tested

Claims (10)

A wire detecting device includes: a signal generating module for providing a test signal; and a signal receiving and processing module comprising at least an equalizer and a computing module, wherein the signal receiving and processing module is The signal to be tested is electrically connected to the signal generating module to receive the test signal and generate a plurality of detection parameter values, and the operation module inputs at least part of the detection parameter values to generate an operation result; Wherein, when the operation result meets one of the plural reference conditions (<1000), the signal receiving and processing module generates a detection result, or the operation result does not meet the one of the reference conditions, And causing the equalizer to generate at least one dynamic compensation value, and causing the signal receiving and processing module to generate another complex detection parameter value according to at least one dynamic compensation value, and further causing the operation module to perform another operation result , thereby reconfirming whether the other operation result meets the other of the reference conditions. The device of claim 1, wherein the value of the detection parameter is generated by the signal receiving and processing module according to a High Definition Multimedia Interface (HDMI) protocol specification; wherein the high picture is The quality multimedia interface includes a complex transmission channel interface. The device of claim 2, wherein any one of the at least partially detected parameter values is a characteristic error detection of the signal receiving and processing module in response to a high-definition multimedia interface protocol specification ( The Character Error Detection program, which corresponds to one of the transmission channel interfaces of any of the transmission channel interfaces, generates a Data Error Rate. The device of claim 3, wherein the transmission channel interface comprises three transmission channel interfaces, and the three transmission channel interfaces respectively have a corresponding one channel first data error rate parameter value (CH0) , a second channel data error rate parameter value (CH1) and a third channel data rate error parameter value (CH2). The apparatus of claim 1, wherein the operation result is a sum of at least a part of the detection parameter values of the data error rates. The device of claim 1, wherein the equalizer is to reduce or amplify the test signal attenuated by the wire to be tested. The device of claim 1, wherein the test signal is an image test signal. The device of claim 1, further comprising an image transmission and output interface electrically connected to the signal receiving and processing module, wherein the image transmission output interface is electrically connected to a display device. The device of claim 8, wherein the display device displays the detection parameter values and the detection result by a user interface, or displays the other detection parameter values, the at least one dynamic compensation value, and the Another test result. The device of claim 1, wherein the reference conditions further include a first reference condition, a second reference condition, a third reference condition, and a fourth reference condition for identifying the test condition The quality of the wire.