TWI494026B - One wire transmission device with error report and one wire cascade transmission device with error report - Google Patents

Description

Single-line transmission device with error return and single-line transmission device with error return

The invention relates to a signal single-line transmission device, and particularly relates to a single-line transmission device with error return and a single-line transmission device with error return suitable for single-line stacking.

In recent years, the trend of using light-emitting diodes as lighting devices for exterior lighting, device lighting or situation lighting of buildings has become more apparent. For example, due to the RGB cluster formed by the red, blue, and green LEDs, there is a considerable diversity of light and shadow effects. Therefore, the pixel clusters are often used to serially connect different illuminating bodies to form a strip screen of a multi-level tandem lamp point, a curtain screen, or a wall washer, etc., and are used for long-distance light strings.

Since such lighting equipment is mostly designed according to the appearance of the building, when the appearance of the building to be illuminated is larger, or the complexity of the lighting design is higher, a larger number of lighting points must be connected in series. Light-emitting diodes are formed to form a long string of pixel clusters to achieve better illumination.

However, in such long-distance tandem pixel clusters, the control signals used to drive the lamp points at each level are not a single global signal. That is to say, the control signal sources of the lamp points of the various levels are not the same signal source, and are all based on the control signals outputted by the previous stage lamp points. Therefore, the control signals of the series second stage input are generated by the series first stage output. The control signal of the serial input of the third stage is generated by the second stage output of the series, and so on.

However, in order to know the status information of the control circuit of the lamp points at all levels, after the control signal updates the data points of the lamp points for a preset number of times, whether there is an error in the control circuit or not, the lamp points of each level are required. The control circuit returns the respective status information, and the status information is sequentially composed of the serial packet back-transmission to know the operational status of the control circuits. However, for single-line half-duplex transmission, if the number of control circuits connected in series increases, the time of returning status information will also increase, and the relative single-line half-duplex transmission path will be occupied by the returning operation for a long time. Time, and indirectly, inevitably, the time spent on updating the data of the lamp points at all levels will inevitably decrease, resulting in a decrease in the rate of data update at all levels.

In view of the above problems, the present invention provides a single-line transmission device with error return and a single-line transmission device with error return in order to avoid a large reduction in data update rate.

The invention discloses a false-return single-line transmission device, which is suitable for a single-line half-duplex stacking (Cascade) series architecture. The single-line transmission device with error return has a first end and a second end. When the error-returning single-line transmission device is in the first mode, the first end receives the first serial packet with the first switching signal, and has a false return single-line transmission. The device obtains the corresponding update data from the first serial packet, and then outputs the serial packet through the second end, and after receiving the first serial packet in the error return single line transmission device, according to the first switching signal, having an error Returning the single-line transmission device to switch from the first mode to the second mode, and when the error-returning single-line transmission device is in the second mode, if the error is returned to the single-line transmission device The error state, the error return single line transmission device generates a first error flag symbol, and the first error flag symbol is output via the first end. When the erroneous return single line transmission device is in the second mode, if the erroneous return single line transmission device does not have an error state, the erroneous return single line transmission device does not generate any first error flag symbol.

In an embodiment, when the error reporting single line transmission device is in the second mode, if the error reporting single line transmission device receives the second error flag symbol from the second end, the error reporting single line transmission device will be the second The error flag symbol is converted into a first error flag symbol and then output by the first end, wherein the second error flag symbol is a first error flag generated by the error reporting single line transmission device coupled to the second end. symbol.

In an embodiment, the error reporting single line transmission device stops operating after outputting the first error flag symbol by the first end until the error reporting single line transmission device resets and returns to the first mode.

In an embodiment, when the error reporting single-line transmission device returns to the first mode, the error-returning single-line transmission device further receives the second serial packet with the second switching signal, and after receiving the second serial packet According to the second switching signal, to switch from the first mode to the third mode, when the error reporting single line transmission device is in the third mode, the error reporting single line transmission device generates the first state information, and is received by the second end. The encoded signal is used as the second status information, and the error reporting unit transmits the first status information and the second status information to generate the encoded signal, and outputs the encoded signal from the first end, wherein the second status information is The second end is coupled to the coded signal outputted by the first end of the faulty single line transmission device.

In an embodiment, the data amount of the first error flag symbol is smaller than the data amount of the first status information and the second status information.

In an embodiment, the erroneous-return single-line transmission device stops operating after outputting the encoded signal by the first end until the erroneous return single-line transmission device resets and returns to the first mode.

In an embodiment, the error state includes a temperature abnormality, a current abnormality, a voltage source open circuit, a voltage source short circuit, or an open circuit detection abnormality.

In an embodiment, the first state information and the second state information include state information of temperature, current, and voltage source.

In an embodiment, the first end and the second end of the erroneously-reported single-line transmission device do not transmit any signal within a preset time, and the erroneous-return single-line transmission device resets.

In an embodiment, the foregoing error-reward single-line transmission device includes a data processor, a first switch, a second switch, a detector, an error flag generator, a third switch, and a fourth switch. The data processor is coupled to the first end and the second end, and when the error reporting linear transmission device is in the first mode, the data processor receives the first serial packet having the first switching signal via the first end, and is configured by Obtaining the corresponding update data in the first serial packet and extracting the first switching signal, and outputting the first serial packet through the second end, and after receiving the first serial packet, the data processor is switched according to the first Signal to switch from the first mode to the second mode. The first switch is coupled between the data processor and the first end, and the first switch is switched according to the first switching signal, the first switch is turned on only in the first mode, and the first switch is turned off in the second mode. second The switch is coupled between the data processor and the second end, and the second switch is switched according to the first switching signal, the second switch is turned on only in the first mode, and the second switch is turned off in the second mode.

The detector is configured to detect whether an error state has occurred in the single-line transmission device with a false return, and accordingly generate a detection signal. The error flag generator is coupled to the first end, the second end, and the detector, and is configured to determine whether to generate the first error flag symbol according to the detection signal, and the first error flag symbol is output by the first end. Alternatively, if the error flag generator receives the second error flag symbol from the second end, the second error flag symbol is converted to the first error flag symbol and then output by the first end. The error flag generator stops outputting any signal from the first end after generating any first error flag symbol until the error reporting single line transmission device is reset, wherein the second error flag symbol is second The first error flag of the first end of the single-line transmission device with the wrong return is coupled to the next stage. The third switch is coupled between the error flag generator and the first end, and the third switch is switched according to the first switching signal, the third switch is only turned on in the second mode, and the third switch is off in the first mode open. The fourth switch is coupled between the error flag generator and the second end, and the fourth switch is switched according to the first switching signal, the fourth switch is only turned on in the second mode, and the fourth switch is off in the first mode. open.

In an embodiment, the foregoing error-reward single-line transmission device further includes a status information generator, a status processor, a fifth switch, and a sixth switch. The status information generator is configured to generate first status information, and the first status information is detailed status information of the single-line transmission device with error reporting. The state processor is coupled to the first end, the second end, and status information a generator, the state processor receives the first state information, and the second state receives the second state information, and the state processor encodes the first state information and the second state information to generate the encoded signal, and the encoded signal is encoded by One end outputs, wherein the second status information is encoded by the first stage of the next stage of the error signal that is output by the first end of the single line transmission device.

The fifth switch is coupled between the state processor and the first end, the fifth switch is switched according to the second switching signal, the fifth switch is turned on only in the third mode, and the fifth switch is in the first mode and the second mode. disconnect. The sixth switch is coupled between the state processor and the second end, the sixth switch is switched according to the second switching signal, the sixth switch is turned on only in the third mode, and the sixth switch is in the first mode and the second mode. disconnect. The second switching signal is included in the second serial packet, and the data processor receives the second serial packet in the first mode, and extracts the second switching signal, and sends the second serial packet to the second end. Output, after receiving the second serial packet, the data processor switches from the first mode to the third mode according to the second switching signal, and the first switch, the second switch, the third switch, and the fourth switch are further The third mode is disconnected.

In an embodiment, the aforementioned state processor includes a decoder, a buffer, and an encoder. The decoder is coupled to the second end for receiving the second state information, and decoding the second state information to generate the decoded signal. The buffer is coupled to the decoder for receiving the decoded signal and buffering the decoded signal to generate a buffered signal. The encoder is coupled to the state information generator, the buffer, and the first end, and configured to receive the first state information and the buffer signal, and encode the first state information and the buffer signal to generate the encoded signal, and the encoded signal is first. End output.

In an embodiment, the foregoing error-return single-line transmission device is based on the third cut. The changeover signal is switched from the first mode to the fourth mode, and the error return single line transmission device can further include the seventh switch. The seventh switch is coupled between the detector and the error flag generator, and is switched according to the third switching signal. The seventh switch is turned off in the fourth mode, and the seventh switch is in the first mode, the second mode, The third mode is turned on. The third switching signal is included in the third serial packet.

Moreover, the third serial packet has a plurality of mode switching information, and one of the mode switching information corresponds to the single-line transmission device with the error return. Each of the mode switching information may include a first switching signal or a third switching signal. The data processor with the error return single line transmission device can receive the third serial packet from the first end in the first mode, and find the mode switching information corresponding to the error return single line transmission device from the third serial packet, and The third serial packet is output via the second end.

If the mode switching information found by the erroneous return single line transmission device from the third serial packet is the first switching signal, the erroneous return single line transmission device switches from the first mode to the second mode. If the mode switching information found by the erroneous return single line transmission device from the third serial packet is the third switching signal, the erroneous return single line transmission device switches from the first mode to the fourth mode. When the single-line transmission device is in error, the third switch and the fourth switch are turned on, and only the error flag generator receives the second error flag symbol from the second end, and then the second error flag is The symbol is converted to the first error flag symbol, and then output by the first end, otherwise the error flag generator will not output any first error flag symbol from the first end. After the error flag generator generates any of the first error flag symbols, the error return single line transmission device stops operating until the error return single line transmission device is reset back to the first mode, wherein The second error flag symbol is coupled by the second end to the first error flag symbol generated by the first end of the faulty single line transmission device of the lower level.

In an embodiment, the aforementioned error-return single-line transmission device further includes a mode controller. The mode controller is coupled to the data processor, the first switch, the second switch, the third switch, the fourth switch, the fifth switch, the sixth switch, and the seventh switch, and is configured to perform the first switching according to the data processor The signal, the second switching signal, or the third switching signal controls the first switch, the second switch, the third switch, the fourth switch, the fifth switch, the sixth switch, and the seventh switch to switch to transmit a single line with error return The device switches from the first mode to the second mode, the first mode switches to the third mode, or the first mode switches to the fourth mode.

In an embodiment, the data amount of the first error flag symbol is smaller than the data amount of the first status information and the second status information.

In an embodiment, the aforementioned error flag generator includes a detector and a pulse generator. The detector is coupled to the second end for detecting whether the second error flag is received to generate the detection signal. The pulse generator is coupled to the first end, the detector and the detector in the second mode, according to the detection signal, to generate the first error flag symbol, or to determine whether the detection signal has the second error according to the detection signal. The flag symbol is converted into a first error flag symbol and then output through the first end. The pulse generator is coupled to the first end and the detector in the fourth mode, according to the detection signal, to convert the detection signal into the first error flag symbol, and then output through the first end. When the pulse generator generates the first error flag, the error return single line transmission device is reset to stop operation until the error return single line transmission device is reset. Among them, the first The second error flag symbol is coupled by the second end to the first error flag symbol generated by the first end of the faulty single line transmission device.

In an embodiment, the aforementioned error-returning single-line transmission device further includes a resetter. The resetter is coupled to the first end and the second end, and is configured to detect a signal transmission state of the first end and the second end, and when the signal transmission state is that the first end and the second end are not received or transmitted within a preset time When any signal is received, the error return single-line transmission device is returned to the first mode.

In an embodiment, the error reporting single line transmission device may receive the fourth serial packet in the first mode, and the fourth serial packet includes the foregoing update data, but without the first switching signal and the second switching. a signal, or a third switching signal, and outputting the fourth serial packet via the second end.

The invention further discloses a tandem error-reporting single-line transmission device, comprising the foregoing error-reporting single-line transmission device, and the error-rejected single-line transmission devices are connected in series, wherein the error-rejected single-line transmission devices are in the first mode The error reporting single-line transmission device sequentially receives the first serial packet having the first switching signal by the first end, and obtains the corresponding updated data from the first serial packet, and then passes the first serial packet through the first The two-terminal output, and after all the series-connected error-rejected single-line transmission devices receive the first serial packet, according to the first switching signal, all the serial error transmission single-line transmission devices are switched from the first mode to the second mode, all connected in series When the single-line transmission device with the error return is in the second mode, if one of the error-returned single-line transmission devices in the series has an error state, the error state of the error-generating single-line transmission device generates the first error flag symbol and is The first error output single-line transmission device uses the first error flag symbol as the second error flag symbol to receive the second error flag symbol by the second end and converts to the first error flag symbol. It is then output by its first end until the first error end of the first single-line transmission device in the series is outputted to output the first error flag.

In an embodiment, the error reporting single line transmission device stops operating after outputting the first error flag symbol by the first end until the error reporting single line transmission device resets and returns to the first mode.

In an embodiment, when all of the serially connected error-rejected single-line transmission devices return to the first mode, all of the serially error-returned single-line transmission devices in series receive the second serialized packet having the second switching signal, and after receiving After the second serial packet is switched, according to the second switching signal, to switch from the first mode to the third mode, when all the series of error reporting single-line transmission devices are switched to the third mode, the last stage of the serial connection has a false return single line transmission. The device converts the first status information into an encoded signal and outputs it by the first end, and the error reporting single line transmission device of the upper level in series connects the encoded signal generated by the error reporting single line transmission device of the next level in series as the second status information. And receiving by the second end, and connecting the first state information of the faulty single-line transmission device of the first stage in series with the second state information received by the second end to generate the coded signal, and the coded signal is One end outputs until the first one of the series returns the encoded signal of the first end of the single-line transmission device.

In an embodiment, all of the serially connected error-return single-line transmission devices return to the first mode, and all of the serially-transmitted single-line transmission devices in series receive the third Serial packet. The third serial packet has multiple mode switching information, and each mode switching information corresponds to a serially connected error transmission single line transmission device. Each mode switching information may include a first switching signal or a third switching signal. When all the serially-transmitted single-line transmission devices in series receive the third serial packet from the first end, each serialized error-return single-line transmission device finds the corresponding one of the single-line transmission devices with the error return from the third serial packet. The mode switch information, and then according to the found mode switching information to decide to switch to the second mode or the fourth mode. All series of error-returned single-line transmissions may be partially in the second mode, and the other part in the fourth mode, or possibly all of the serially-returned single-line transmissions in the second mode, or possibly all false-reported single-line transmissions They are all in the fourth mode.

In the foregoing, when a serially connected error-reported single-line transmission device is in the second mode, if the error-returning single-line transmission device in the second mode is in an error state, the error-returning single-line transmission device generates the first error flag symbol and The first-end output, and the error-returning single-line transmission device of the upper-level serial connection, whether in the second mode or the fourth mode, will use the first error flag symbol as the second error flag symbol to receive the second error by the second end. The error flag symbol is converted to the first error flag symbol and output by the first end thereof until the first error output of the first one of the error reporting single line transmission devices in series is output.

In the foregoing, when one of the series-connected error-rejected single-line transmission devices is in the fourth mode, if the error-returning single-line transmission device in the fourth mode is in an error state, the error-returning single-line transmission device does not generate the first error flag symbol and is Its first end Output, unless the second end of the error returning single line transmission device receives the second error flag symbol, the received second error flag symbol is converted into the first error flag symbol and then output by the first end until the serial number A wrong end of the single-line transmission device outputs a first error flag symbol.

In an embodiment, the error state includes a temperature abnormality, a current abnormality, a voltage source open circuit, a voltage source short circuit, or an open circuit detection abnormality.

In an embodiment, the first state information and the second state information include state information of temperature, current, and voltage source.

In one embodiment, all of the aforementioned first and second ends of the erroneously-reported single-line transmission device are transmitted by any signal within a preset time, and the erroneous-return single-line transmission device is reset back to the first mode.

In an embodiment, the data amount of the first error flag symbol is smaller than the data amount of the first status information and the second status information.

In an embodiment, all of the foregoing series of error-reported single-line transmission devices can receive the fourth serial packet only in the first mode, and the fourth serial packet includes the updated data, but without the first switching signal, Second switching signal, or third switching signal.

In addition, when it is known that the first end of the first error transmission single-line transmission device in series outputs the first error flag symbol, it may not be possible to know exactly which error has occurred in the single-line transmission device. After resetting the error-returning single-line transmission device, the error-returning single-line transmission device is reset in the first mode to receive the second serial packet with the second switching signal, so as to return the first information state with a large amount of data. Encoding signal with the second information state, and knowing which one is connected in error An error occurred in returning the single line transmission device.

In addition, after resetting the error-returning single-line transmission device, the error-returning single-line transmission device is reset in the first mode to sequentially receive the third serial packet with multiple mode switching information, and each mode is switched. The information may include the first switching signal or the third switching signal, and the third serial packet is used to switch a specified error-return single-line transmission device into the second mode, and the other error-returning single-line transmission device is switched to In the fourth mode, if the first error flag is output from the first end of the first error transmission single-line transmission device in series, it can be known that the single-line transmission device with the error return is switched to the second mode. An error condition has occurred to determine which of the series of faulty single-line transmission devices has an error.

In this way, when the single-line transmission device with error reporting is normally monitored, since the data amount of the first error flag symbol is smaller than the data amount of the first state information and the second state information, the usual monitoring is performed by the second mode of saving time. Once it is known that an error condition has occurred, the time-consuming third mode or the fourth mode is used to know which one of the faulty single-line transmission devices has an error, thereby saving the time spent on the usual device monitoring, and thus Avoid greatly reducing the data update rate.

The features and implementations of the present invention are described in detail below with reference to the drawings.

Please refer to FIG. 1 , which is a schematic diagram of a single-line transmission device with error reporting according to the present invention. The erroneous-report single-line transmission apparatus 100 of the present embodiment is adapted to be applied to the architecture of a single-line stack. The erroneous-return single-line transmission device 100 (hereinafter referred to as the device 100) has a first end 101 and a second end 102. Where, when the device 100 In the first mode, the first end 101 serves as an input and the second end serves as an output, and the first end 101 receives, for example, a first serial packet having a first switching signal.

Moreover, the device 100 processes the received first serial packet to obtain corresponding update data from the first serial packet, so that the device 100 can perform the data update operation. Then, the device 100 outputs the first serial packet via the second end 102, for example, the device that is output to the back end (for example, coupled with the second end 102 with a faulty single-line transmission device) for corresponding processing. .

After the device 100 receives the first serial packet, the device 100 switches from the first mode to the second mode according to the first switching signal in the first serial packet. When the device 100 is in the second mode, the first end 101 serves as an output and the second end 102 serves as an input. If the device 100 itself has an error state, the device 100 generates a first error flag symbol (Error Flag Symbol). And outputting the first error flag symbol via the first end 101, for example, outputting to the front end device (for example, coupling with the first end 101 to the upper level with a false return single line transmission device or generating a serial packet control) In order to inform the device 100 that an error has occurred.

On the other hand, when the device 100 is in the second mode, if the device 100 itself does not have an error condition, the device 100 does not generate any first error flag symbols. At the same time, the device 100 will wait for the second error flag to be received by the second end 102, wherein the second error flag is, for example, a device at the back end (ie, coupled to the second end 102. The first error flag symbol generated by the error state of the single-line transmission device.

If the second end 102 has received the second error flag, the device 100 will The second error flag symbol is converted into the first error flag symbol, and then outputted through the first end 101, for example, the device outputted to the front end (ie, coupled with the first end 101 with a faulty single-line transmission device or Is the controller that generates the serial packet) to inform that an error condition has occurred.

Further, the device 100 includes a data processor 110, a first switch SW1, a second switch SW2, a detector 120, an error flag generator 130, a third switch SW3, and a fourth switch SW4.

The data processor 110 is coupled to the first end 101 and the second end 102, and when the device 100 is in the first mode, the data processor 110 receives the first serial packet having the first switching signal via the first end 101, and The update data is obtained from the first serial packet and the first switching signal is extracted, and the first serial packet is output via the second end 102.

The first switch SW1 is coupled between the data processor 110 and the first end 101, and the first switch SW1 can be switched according to the first switching signal. The first switch SW1 is turned on in the first mode, and the first switch SW1 is turned off in the second mode. The second switch SW2 is coupled between the data processor 110 and the second end 102, and the second switch SW2 can be switched according to the first switching signal. The second switch SW2 is turned on in the first mode, and the second switch SW2 is turned off in the second mode.

The detector 120 is configured to detect whether the device 100 has an error state, and accordingly generate a detection signal. The foregoing error state includes, for example, a temperature abnormality, a current abnormality, a voltage source open circuit, a voltage source short circuit, or an open circuit detection abnormality. For example, when the detector 120 detects these error states, for example, a high level detection signal is generated. When detecting When the error state is not detected by the device 120, for example, a low level detection signal is generated.

The error flag generator 130 is coupled to the first end 101, the second end 102, and the detector 120. The error flag generator 130 is configured to determine whether to generate the first error flag according to the detection signal, and first The error flag symbol is output by the first terminal 101. Or, if the error flag generator 130 receives the second error flag symbol from the second end 102, the received second error flag symbol is converted into the first error flag symbol, and then the first End 101 output. For example, when the detection signal is at a high level, the error flag generator 130 generates a first error flag symbol. When the detection signal is at a low level, the error flag generator 130 does not generate the first error flag symbol.

Next, the error flag generator 130 will wait for the second error flag symbol received via the second end 102 (e.g., the first error flag symbol generated by the first end 101 of the next-level error reporting single line transmission device). Thereafter, when the error flag generator 130 receives the second error flag symbol, the error flag generator 130 converts the second error flag symbol into the first error flag symbol, and then outputs the first error signal through the first end 101. .

In addition, after the error flag generator 130 generates the first error flag, the device 100 stops operating (ie, the device 100 stops outputting any signal by the first terminal 101) until the device 100 is reset back to the first Until a mode. The second error flag symbol is, for example, a first error flag symbol generated by the first end of the lower-order single-line transmission device coupled to the second end 102.

The third switch SW3 is coupled between the error flag generator 130 and the first terminal 101, and the third switch SW3 is switched according to the first switching signal. The third switch SW3 is turned on in the second mode, and the third switch SW3 is turned off in the first mode. The fourth switch SW4 is coupled between the error flag generator 130 and the second terminal 102, and the fourth switch SW4 is switched according to the first switching signal. The fourth switch SW4 is turned on in the second mode, and the fourth switch SW4 is turned off in the first mode.

When the device 100 is in the first mode (e.g., data update), the device 100 obtains the required update data from the first serial packet. When the device 100 is in the second mode, the device 100 is relayed by an error flag to perform a false return monitoring operation.

In this embodiment, when the device 100 has an error state, the controller is notified of an error state by returning a first error flag symbol having a small amount of data. In this way, when the faulty single-line transmission device normally performs error state monitoring, the second mode of saving time can be used to know whether an error state occurs to avoid a large reduction in the data update rate.

Please refer to "Fig. 2", which is a detailed schematic diagram of the single-line transmission device with error return of the present invention. The error-rejected single-line transmission device 200 of the present embodiment is adapted to be applied to a single-line stacked (Cascade) serial architecture. The error return single line transmission device 200 (hereinafter referred to as the device 200) has a first end 201 and a second end 202, and the device 200 includes a data processor 210, a first switch SW1, a second switch SW2, a detector 220, and an error flag. The target generator 230, the third switch SW3, the fourth switch SW4, the mode controller 240, the state information generator 250, the state processor 260, the fifth switch SW5, the sixth switch SW6, the seventh switch SW7 and the resetter 270 .

The data processor 210 is coupled to the first end 201 and the second end 202. The data processor 210 can receive the first serial packet with the first switching signal via the first end 201 when the device 200 is in the first mode. Second string seal with second switching signal A packet, a third serial packet with multiple mode switching information, or a fourth serial packet with only updated data.

For example, when the data processor 210 of the device 200 receives the first serial packet in the first mode, the data processor 210 obtains the corresponding update data from the first serial packet and extracts the first switching signal, and The first serial packet is output via the second end 202. Then, after the device 200 receives the first serial packet, the device 200 switches from the first mode to the second mode according to the first switching signal in the first serial packet.

When the data processor 210 of the device 200 receives the second serial packet in the first mode, the data processor 210 obtains the corresponding update data from the second serial packet and extracts the second switching signal, and the second string is obtained. The column packet is output via the second end 202. Moreover, after the device 200 receives the second serial packet, the device 200 switches from the first mode to the third mode according to the second switching signal in the second serial packet.

When the data processor 210 of the device 200 receives the third serial packet in the first mode, the data processor 210 obtains the corresponding mode switching information from the third serial packet, and the third serial packet is sent to the second end. 202 output. The third serial packet includes, for example, a plurality of mode switching information, and one of the mode switching information corresponds to the device 200, and each of the mode switching information includes, for example, a possible first switching signal or a third switching signal. .

Moreover, after the device 200 receives the third serial packet, if the mode switching information acquired by the data processor 210 of the device 200 is the third switching signal, the device 200 switches from the first mode to the fourth mode. On the other hand, the device 200 receives the third After the serial packet, if the mode switching information obtained by the data processor 210 of the device 200 is the first switching signal, the device 200 switches from the first mode to the second mode.

The resetter 270 is coupled to the first end 201 and the second end 202 for detecting the signal transmission state of the first end 201 and the second end 202 to determine whether to reset the device 200 to return to the first mode. For example, when the signal transmission state is that the first end 201 and the second end 202 do not receive or transmit any signal within a preset time, the resetter 270 generates a reset signal RST to reset the device 200 back to the first A mode.

The mode controller 240 is coupled to the data processor 210, the first switch SW1, the second switch SW2, the third switch SW3, the fourth switch SW4, the fifth switch SW5, the sixth switch SW6, and the seventh switch SW7. If the mode controller 240 knows from the data processor 210 that the device 200 has received any of the serial packets, the mode controller 240 provides the corresponding control signal CS1 according to the first switching signal, the second switching signal and the third switching signal. , CS2, CS3, CS4, to control the switching of the first switch to the seventh switch SW1~SW7.

The control signal CS1 is used to control the first switch SW1 and the second switch SW2 to be turned on and off; the control signal CS2 is used to control the third switch SW3 and the fourth switch SW4 to be turned on and off; the control signal CS3 is used to control the fifth The switch SW5 and the sixth switch SW6 are turned on and off; the control signal CS4 is used to control the seventh switch SW7 to be turned on and off.

For example, when the mode controller 240 does not receive any switching signal, the mode controller 240 generates a high-level control signal CS1 and low-level control signals CS2, CS3, and CS4 to control the first switch SW1 and the first The second switch SW2 is turned on, The other switches SW3~SW7 are turned off, so that the device 200 is in the first mode to perform the data update operation.

When the mode controller 240 receives the first switching signal, the mode controller 240 generates the low level control signals CS1 and CS3 and the high level control signals CS2 and CS4, and controls the third switch SW3 and the fourth switch SW4. The seventh switch SW7 is turned on, and the other switches SW1, SW2, SW5, and SW6 are turned off, so that the device 200 enters the second mode.

When the mode controller 240 receives the second switching signal, the mode controller 240 generates the low level control signals CS1, CS2 and CS4 and the high level control signal CS3, and controls the fifth switch SW5 and the sixth switch SW6 to be turned on. The other switches SW1~SW4, SW7 are turned off, causing the device 200 to enter the third mode.

When the mode controller 240 receives the third switching signal, the mode controller 240 generates the low level control signals CS1, CS3 and CS4 and the high level control signal CS2, and controls the third switch SW3 and the fourth switch SW4 to be turned on. The other switches SW1, SW2, SW5~SW7 are turned off, causing the device 200 to enter the fourth mode. Moreover, when the device 200 is in the fourth mode, the mode controller 240 turns off the seventh switch SW7, which is different from the device 200 in the second mode, that is, when the device 200 is in the fourth mode, mode control The device 240 turns on the seventh switch SW7.

The first switch SW1 is coupled between the data processor 210 and the first end 201, and the second switch SW2 is coupled between the data processor 210 and the second end 202, and the first switch SW1 and the second switch SW2 are The signal CS1 is controlled to switch.

The third switch SW3 is coupled to the error flag generator 230 and the first end 201 The fourth switch SW4 is coupled between the error flag generator 230 and the second terminal 202. The seventh switch SW7 is coupled between the error flag generator 230 and the detector 220, and the third switch SW3 is coupled to The fourth switch SW4 and the seventh switch SW7 are switched according to the control signals CS2 and CS4.

The detector 220 is configured to detect whether the device 200 has an error state in the second mode, and accordingly generate a detection signal. For example, when the detector 220 detects that the device 200 has an error state, the detector 220 generates, for example, a high-level detection signal. When the detector 220 detects that the device 200 has not been in an error state, the detector 220 generates, for example, a low level detection signal.

The error flag generator 230 is coupled to the first end 201, the second end 202, and the detector 220 in the second mode, and the error flag generator 230 is configured to determine whether to generate the first error flag according to the detection signal. The symbol, and the first error flag symbol is output by the first end 201. Or, if the error flag generator 230 receives the second error flag symbol from the second end 202, the received second error flag symbol is converted into the first error flag symbol, and then Outputted via the first end 201. For example, when the detection signal is at a high level, the error flag generator 230 generates a first error flag symbol. When the detection signal is at a low level, the error flag generator 230 does not generate any first error flag symbols.

Next, the error flag generator 230 will wait for the second error flag symbol received via the second end 202 (e.g., the first error flag symbol generated by the first end 201 of the next-level error-reported single-line transmission device). Thereafter, when the error flag generator 230 has received the second error flag, the error flag generator 230 will cause the second error. The error flag symbol is converted to the first error flag symbol and then output through the first end 201.

In addition, the error flag generator 230 is in the second mode and after the first error flag is generated, the device 200 stops operating (ie, the device 200 stops outputting any signal by the first terminal 201) until the device 200 is Reset back to the first mode. The second error flag symbol is, for example, a first error flag symbol generated by the first end of the lower-order single-line transmission device coupled to the second end 202.

The error flag generator 230 further includes a detector 231 and a pulse generator 232. The detector 231 is coupled to the second end 202 in the second mode for receiving and detecting the second error flag symbol to generate a detection signal. For example, when the detector 231 detects that the second error flag is received, the detector 231 generates, for example, a high level detection signal. When the detector 231 detects that the second error flag symbol has not been received, the detector 231 generates, for example, a low level detection signal. In this embodiment, the second error flag symbol may be one of a high pulse signal, a low pulse signal, a high level signal, and a low level signal.

The pulse generator 232 is coupled to the first end 201, the detector 231 and the detector 220 in the second mode to generate a first error flag according to the detection signal. For example, when the detection signal is at a high level, the pulse generator 232 generates a first error flag symbol, and the first error flag symbol can be output by the first end 201. When the detection signal is at a low level, the pulse generator 232 does not generate the first error flag symbol. In this embodiment, the first error flag symbol may be one of a high pulse signal, a low pulse signal, a high level signal, and a low level signal.

Alternatively, the pulse generator 232 can determine the detection signal according to the detection signal in the second mode. The detection signal has a second error flag symbol, and further the detection signal having the second error flag symbol is converted into the first error flag symbol, and then output through the first end 201. For example, when the detection signal is at a high level, the pulse generator 232 converts the detection signal having the second error flag symbol into a first error flag symbol, and the first error flag symbol is again passed through the first End 201 outputs. When the detection signal is at a low level, the pulse generator 232 does not have any action.

In addition, the pulse generator 232 is very similar in the fourth mode as in the second mode. That is, the pulse generator 232 is coupled to the first end 201 and the detector 231 in the fourth mode, but when the pulse generator 232 is in the fourth mode, the seventh switch SW7 is disconnected and not detected. The device 220 is coupled. In the fourth mode, the pulse generator 232 converts the detection signal into a first error flag symbol according to the detection signal, and then outputs the signal through the first end 201. Moreover, when the pulse generator 232 generates the first error flag, the device 200 stops operating (ie, the pulse generator 232 stops outputting any signals) until the device 200 is reset. The second error flag symbol is coupled, for example, by the second end to a first error flag symbol generated by the first end of the faulty single-line transmission device.

The fifth switch SW5 is coupled between the state processor 260 and the first end 201, the sixth switch SW6 is coupled between the state processor 260 and the second end 202, and the fifth switch SW5 and the sixth switch SW6 are The signal CS3 is controlled to switch.

The status information generator 250 is configured to generate first status information when the third mode is used. The first status information is, for example, detailed status information of the device 200. The state processor 260 is coupled to the first end 201, the second end 202, and the state information generator in the third mode. 250, the state processor 260 receives the first state information, and receives the second state information by the second end 202, and the state processor 260 encodes the first state information and the second state information to generate the encoded signal and is first End 201 outputs. The second status information is, for example, coupled to the encoded signal output by the first end of the faulty single-line transmission device of the lower stage coupled to the second end 202. Moreover, the first status information and the second status information include, for example, status information of temperature, current, voltage source, and the like.

The state processor 260 further includes a decoder 261, a buffer 262, and an encoder 263. The decoder 261 is coupled to the second end 202 in the third mode for receiving the second state information and decoding the second state information to generate a decoded signal. The buffer 262 is coupled to the decoder 261 for receiving the decoded signal and buffering the decoded signal to generate a buffered signal. In the third mode, the encoder 263 is coupled to the state information generator 250, the buffer 262, and the first end 201 for receiving the first state information and the buffer signal, and encoding the first state information and the buffer signal to generate The coded signal is output from the first end 201.

Further, the device 200 further includes pull-down resistors R1 and R2. The first end of the pull-down resistor R1 is coupled to the first end 201 of the device 200, the second end of the pull-down resistor R1 is coupled to the ground end, and the first end of the pull-down resistor R2 is coupled to the second end 202 of the device 200, and the pull-down resistor The second end of the R2 is coupled to the ground.

When the device 200 does not receive or transmit signals, the pull-down resistors R1 and R2 can maintain the first end 201 and the two ends 202 of the device 200 at a voltage drop that tends to zero, when the resetter 270 detects the pull-down resistors R1 and R2. When there is no change in voltage drop or the voltage drop is zero within the preset time, a reset signal RST is generated to reset the device 200 back to the first mode.

In addition, the device 200 can receive the fourth serial packet in the first mode, where the fourth serial packet includes only the update data, but does not include any of the foregoing switching signals and mode switching information, and the device 200 can set the fourth serial The packet is output via the second end 202.

In this embodiment, after the device 200 is reset, the device 200 can return to the first mode, and after receiving the first serial packet, the second serial packet, or the third serial packet, switch to the corresponding second. Mode, third mode or fourth mode. After the device 200 is switched from the first mode to the second mode, the third mode, or the fourth mode (ie, the device 200 is disconnected from the first mode), when the device 200 is reset again, the device 200 returns to the first mode.

It can be seen that when the device 200 has an error state, the controller is notified of an error state by returning a first error flag symbol having a small amount of data. In this way, when the device 200 performs error state monitoring in peacetime, the second mode of saving time can be used to know whether an error state occurs, so as to avoid a large reduction in the data update rate.

When the device 200 is in the third mode, the first state information or the second state information with a large amount of data is returned, thereby informing the device 200 and the operating state of the faulty single-line transmission device of the next stage.

When the device 200 is in the fourth mode, the first error flag symbol with a small amount of data is returned via the first end 201, thereby informing the device 200 that an error has occurred.

Please refer to FIG. 3, which is a schematic diagram of a Cascade faulty single-line transmission device of the present invention. Among them, the tandem error reporting single line transmission device performs data transmission by, for example, single line half duplex. Tandem with error return single line transmission The device 300 (hereinafter referred to as the serial device 300) includes a single-line transmission device 310, 320, 330 (hereinafter referred to as the devices 310, 320, 330) with error reports. Also, the devices 310, 320, 330 are connected in series, and the devices 310, 320, 330 each have a first end 311, 321, 331 and a second end 312, 322, 332. For the internal components of the devices 310, 320, and 330, and their coupling relationships and operational procedures, reference may be made to the description of the embodiments of "FIG. 1" and "FIG. 2", and therefore no further description is provided herein. In this embodiment, only three erroneous-return single-line transmission devices are taken as an example, but the present invention is not limited thereto, and the user can adjust the number of erroneous-return single-line transmission devices by themselves.

First, when the devices 310, 320, 330 are in the first mode, the serial device 300 receives the first serial packet having the first switching signal by the first end 311 of the device 310 (eg, the first level device). Next, the device 310 obtains the corresponding update data from the first serial packet to perform the related update operation. Thereafter, device 310 outputs the first serial packet from second end 312.

Next, the device 320 (for example, the second-level device) receives the first serial packet output by the second end 312 of the device 310 by the first end 321 , and obtains the corresponding update data and the first switch from the first serial packet. Signal. Thereafter, device 320 outputs the first series of packets from second end 322.

Next, the device 330 (for example, the third-level device) receives the first serial packet output by the second end 322 of the device 320 by the first end 331, and obtains the corresponding update data and the first switch from the first serial packet. Signal. Thereafter, device 330 outputs the first serial packet by second end 332.

Then, after the devices 310, 320, and 330 receive the first serial packet, they will follow The first switching signal is obtained to switch from the first mode to the second mode, so that the serial device 300 enters the monitoring operation of the error state.

When the serial device 300 is in the second mode, assuming that the device 310 has an error state, the device 310 generates a first error flag symbol and is output by the first terminal 311 to the controller (ie, the previous device), so the controller It will be known that the series device 300 has an error state.

Assuming that the device 320 has an error state, the device 320 generates a first error flag symbol and is output by the first terminal 321 , and the device 310 (ie, the previous device) uses the first error flag symbol generated by the device 320 as the first The second error flag is received by the second end 312. Then, the device 310 converts the second error flag symbol into a first error flag, and then outputs the signal to the controller (ie, the previous device) via the first end 311, so the controller knows that the serial device 300 has an error state. The situation happened. Assuming that the device 330 is in an error state, the device 330 generates a first flag error flag and is output by the first terminal 331, passes through the device 320 and transmits to the device 310, and finally outputs to the controller via the first end 311 of the device 310 ( That is, the former device), so the controller will know that the serial device 300 has an error state.

Thereafter, the serial device 300 resets to return to the first mode to be able to receive any of the serial packets again. The serial device 300 transmits only a first error flag symbol number with a small amount of data in the second mode, that is, the controller can normally perform monitoring by using the second mode of saving time to know whether an error state occurs. This method can effectively reduce the time for the controller to receive data, so as to avoid a large reduction in data update rate. In addition, the controller receives the first error flag symbol to know that the serial device 300 has an error. State, but the controller cannot know exactly which error has occurred in the single-line transmission device. Therefore, after the device 310, 320, 330 is reset and returned to the first mode, the controller may further provide a second serial packet with the second switching signal, so that the device 310, 320, 330 receives the second string. After the packet is encapsulated, the third mode is entered from the first mode according to the second switching signal.

Then, the device 330 generates the first state information and converts it into an encoded signal, which is output by the first end 331, and the device 320 (ie, the previous device) uses the encoded signal generated by the device 330 as the second state information, and is second. End 322 receives. Then, the device 320 generates the first status information, and encodes the first status information and the second status information received by the second end 322 to generate an encoded signal (ie, including status information of the devices 330 and 320). Then, the device 320 outputs the encoded signal via the first end 321 , and the device 310 (ie, the previous device) uses the encoded signal generated by the device 320 as the second status information and is received by the second end 312 .

Then, the device 310 generates the first status information, and encodes the first status information and the second status information received by the second end 312 to generate an encoded signal (ie, including status information of the devices 330, 320, and 310). The coded signal is output to the controller (ie, the previous stage device) via the first end 311.

In this embodiment, when the serial device 300 has an error state, the first error flag symbol with a small amount of data is returned, and the controller is notified that an error state occurs, and the data amount is large by returning the data. The first information state and the second information state of the encoded signal to inform the controller which error has occurred in the single-line transmission device. In this way, in the usual monitoring, the second mode with a small amount of returned data is used. Wait until the monitored error state occurs, and then use the third mode with a large amount of returned data to confirm the detailed information, so as to reduce the amount of data of the usual monitoring error return, to increase the data update rate.

In the foregoing embodiment, the complete information state of all the single-line transmission devices with error reports is returned to know which one of the error-returning single-line transmission devices has an error. However, the present invention is not limited to this, and an example will be described below.

When all of the series connected devices 310, 320, 330 are reset to return to the first mode, all of the series connected devices 310, 320, 330 further receive the third serial packet. The third serial packet has multiple mode switching information, and each mode switching information corresponds to a serially connected device 310, 320, 330, and each mode switching information includes, for example, a first switching signal or a third switching. Signal.

When all of the series connected devices 310, 320, 330 receive the third serial packet from the first end 311, 321, 331, each serially connected device 310, 320, 330 finds the belonging device 310 from the third serial packet. 320, 330 respectively corresponding mode switching information, and then according to finding the corresponding mode switching information to decide to switch to the second mode or the fourth mode.

That is, all of the devices 310, 320, 330 in series are in the second mode, the other portion is in the fourth mode, or all of the devices 310, 320, 330 in series are in the second mode, or all of the devices 310 in series 320 and 330 are all in the fourth mode.

For example, assume that device 330 (part of all devices 310, 320, 330 in series) is in a second mode, devices 310, 320 (all devices 310 in series, The other part of 320, 330 is in the fourth mode. If the device 330 in the second mode has an error state, the device 330 generates a first error flag symbol, and the device 310 and the device 320 in the fourth mode generate the device 330. The first error flag symbol is converted and transmitted and finally output to the controller by the first end 311 of the device 310 (i.e., the device in series) to perform a return of the error state.

In this way, since the controller can know in advance that only the device 330 is in the second mode at this time, it can be known that the device 330 has an error. Conversely, if the controller does not receive any first error flag at this time, the controller can know that the device 330 is in the second mode at this time, so that the device 330 can be notified that no error has occurred. .

It is assumed that device 320 (part of all devices 310, 320, 330 in series) is in the second mode, and devices 310, 330 (other portions of all devices 310, 320, 330 in series) are in the fourth mode. If the device 320 in the second mode has an error state, the device 320 generates a first error flag symbol, and the device 310 in the fourth mode converts and transmits the first error flag symbol generated by the device 320, and finally The first end 311 of the device 310 (i.e., the first device in series) is output to the controller for a return on the error condition.

In this way, since the controller can know in advance that only the device 320 is in the second mode at this time, it can be known that the device 320 has an error. Conversely, if the controller does not receive any first error flag at this time, it can be known by the controller that only the device 320 is in the second mode at this time, so that it is known that the device 320 has not generated an error. The rest is analogous. In this way, the controller can know which one has the wrong return. An error occurred in the single line transmission device.

The error-rejected single-line transmission device and the erroneous-return single-line transmission device disclosed in the embodiment of the present invention receive the first serial packet with the first switching signal in the first mode, and obtain the first serial transmission device with the error return After updating the data, the first mode is switched to the second mode. When the single-line transmission device with the error report is in the second mode, if any error reporting single-line transmission device has an error state, the amount of returned data is small. Error flag symbol to indicate that an error condition has occurred.

In addition, when it is known that the first end of the first error transmission single-line transmission device in series outputs the first error flag symbol, it is impossible to know exactly which error has occurred in the single-line transmission device, and the error may be After returning the single-line transmission device to return to the first mode, receiving the second serial packet with the second switching signal to return the encoded signal having the first information state and the second information state with a larger amount of data, Know which one has the wrong return single-line transmission device error.

In addition, after resetting the error-returning single-line transmission device, the error-returning single-line transmission device resets the first serial mode to sequentially receive the third serial packet with multiple mode switching information numbers, and each The mode switching information includes a first switching signal or a third switching signal, and the third serial packet is used to switch a specified one of the serialized faulty single-line transmission devices into the second mode, and the other error-returning single-line transmission device is switched to In the fourth mode, if the first error flag is output from the first end of the first error transmission single-line transmission device in series, it can be known that the error-return single-line transmission device that is switched to the second mode has occurred. Error status to know which one has an error returning a single line transmission device error.

In this way, when the single-line transmission device with error reporting is normally monitored, it is executed by the second mode of saving time. Once it is known that an error state occurs, the time-consuming third mode or the fourth mode is used to know which one is. A faulty single-line transmission device is faulty, so it saves time spent on normal device monitoring, thereby avoiding a large reduction in data update rate. In addition, the greater the number of series stages of the single-line transmission device with the error return, the more obvious the effect of avoiding a large reduction in the data update rate.

While the present invention has been described above in the foregoing 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 patent protection shall be subject to the definition of the scope of the patent application attached to this specification.

100, 200, 310, 320, 330‧‧‧ error return single line transmission device

101, 201, 311, 321, 331‧‧‧ first end

102, 202, 321, 322, 332‧‧‧ second end

110, 210‧‧‧ data processor

120, 220‧‧‧Detector

130, 230‧‧‧ error flag generator

231‧‧‧Detector

232‧‧‧ Pulse Generator

240‧‧‧Mode Controller

250‧‧‧Status Information Generator

260‧‧‧ State Processor

261‧‧‧Decoder

262‧‧‧ buffer

263‧‧‧Encoder

270‧‧‧Reset

300‧‧‧ tandem with error return single line transmission

R1, R2‧‧‧ pull-down resistor

SW1‧‧‧ first switch

SW2‧‧‧second switch

SW3‧‧‧ third switch

SW4‧‧‧fourth switch

SW5‧‧‧ fifth switch

SW6‧‧‧ sixth switch

SW7‧‧‧ seventh switch

CS1, CS2, CS3, CS4‧‧‧ control signals

RST‧‧‧Reset signal

Figure 1 is a schematic illustration of a single-line transmission device with error reporting in accordance with the present invention.

Figure 2 is a detailed schematic view of the single-line transmission device with error return of the present invention.

Figure 3 is a schematic view of a tandem faulty single line transmission device of the present invention.

100‧‧‧Wrong return single line transmission

101‧‧‧ first end

102‧‧‧ second end

110‧‧‧ data processor

120‧‧‧Detector

130‧‧‧Error flag generator

SW1‧‧‧ first switch

SW2‧‧‧second switch

SW3‧‧‧ third switch

SW4‧‧‧fourth switch

Claims (26)

A single-line transmission device with error return includes a first end; a second end; a data processor coupled to the first end and the second end for when the single-line transmission device with error reporting is in a In the first mode, the first end receives a first serial packet having a first switching signal, and the data processor obtains an update data from the first serial packet, and then the first serial packet is sent through the first serial packet. The second end outputs, and after the error reporting single line transmission device receives the first serial packet, the error reporting single line transmission device switches from the first mode to the second mode according to the first switching signal a detector for detecting whether an error state occurs in the single-line transmission device with the error returning single-line transmission device, and generating a detection signal; and an error flag; a flag generator, configured to determine whether to generate a first error flag symbol according to the detection signal when the error reporting single line transmission device is in the second mode, wherein the error flag is transmitted by the single line When the error state occurs, the error flag generator generates the first error flag symbol, and the first error flag symbol is output via the first end, and the error state does not occur when the error reporting single line transmission device does not occur. The error flag generator does not generate the first error flag symbol. The error return single line transmission device as claimed in claim 1, wherein the error is When the single-line transmission device is in the second mode, when the error flag generator receives a second error flag symbol from the second end, the error flag generator converts the second error flag symbol to The first error flag symbol is further output by the first end, wherein the second error flag symbol is the first error flag generated by the error reporting single line transmission device coupled to the second end symbol. The faulty single-line transmission device of claim 2, wherein the error-returning single-line transmission device stops operating after outputting the first error flag symbol by the first end until the error reporting single-line transmission device performs heavy Set and return to the first mode. The error reporting single line transmission device of claim 3, further comprising: a status information generator, wherein the error reporting single line transmission device receives further when the error reporting single line transmission device returns to the first mode a second serial packet having a second switching signal, wherein the error reporting single line transmission device receives the second serial packet, and according to the second switching signal, the error reporting single line transmission device is configured by the first mode Switching to a third mode, when the error reporting single line transmission device is in the third mode, the status information generator generates a first status information, where the first status information is a detailed status of the error reporting single line transmission device And a state processor coupled to the state information generator, receiving the first state information, and using a coded signal received by the second terminal as a second state information, the state processor first After the status information is encoded and the second status information is encoded, the encoded signal is generated, and the encoded signal is output by the first end, where the first The two-state information is the coded signal output by the first end of the faulty single-line transmission device of the lower stage coupled to the second end. The error return single line transmission device of claim 4, wherein the data amount of the first error flag symbol is smaller than the data amount of the first status information and the second status information. The faulty single-line transmission device according to claim 4, wherein the error-returning single-line transmission device stops operating after outputting the encoded signal by the first end, until the error-returning single-line transmission device resets and returns Until the first mode. The faulty single-line transmission device according to claim 4, wherein the error state includes temperature abnormality, current abnormality, voltage source open circuit, voltage source short circuit or open circuit detection abnormality. The error reporting single line transmission device of claim 4, wherein the first status information and the second status information comprise status information of temperature, current, and voltage source. The error reporting single-line transmission device of claim 4, wherein the state processor comprises: a decoder coupled to the second end for receiving the second state information in the third mode, and The second state information is decoded to generate a decoded signal; a buffer coupled to the decoder for receiving the decoded signal, and buffering the decoded signal to generate a buffered signal; and an encoder The third mode is coupled to the state information generator, and the And the first end is configured to receive the first state information and the buffer signal, and encode the first state information and the buffer signal to generate the encoded signal, and the coded signal is used by the first end Output. The error reporting single-line transmission device of claim 4, wherein the first end and the second end of the error-rejected single-line transmission device do not transmit any signal within a predetermined time, the error-returning single-line transmission device Will be reset. The faulty single-line transmission device of claim 4, wherein the error-returning single-line transmission device comprises: a first switch coupled between the data processor and the first end, and the first switch is based on The first switch is switched, the first switch is turned on in the first mode, the first switch is turned off in the second mode and a third mode, and a second switch is coupled to the data processor And the second switch is switched according to the first switching signal, the second switch is turned on in the first mode, and the second switch is interrupted in the second mode and the third mode a third switch is coupled between the error flag generator and the first end, and the third switch is switched according to the first switching signal, and the third switch is turned on in the second mode, The third switch is disconnected between the first mode and the third mode; and a fourth switch is coupled between the error flag generator and the second end, and the fourth switch is according to the first Switching signals to switch, the fourth switch is in the second mode When the current is turned on, the fourth switch is disconnected when the first mode is in the third mode. The faulty single-line transmission device of claim 11, wherein the error-returning single-line transmission device further includes: a fifth switch coupled between the state processor and the first end, the fifth switch is a second switching signal is switched, the fifth switch is turned on in the third mode, the fifth switch is turned off in the first mode and the second mode; and a sixth switch is coupled to the state Between the processor and the second end, the sixth switch is switched according to the second switching signal, the sixth switch is turned on in the third mode, and the sixth switch is in the first mode and the second mode Disconnecting; wherein the second switching signal is included in the second serial packet, and the data processor receives the second serial packet in the first mode, and extracts the second switching signal, and the The second serial packet is outputted through the second end, and after receiving the second serial packet, the data processor switches from the first mode to the third mode according to the second switching signal, and the first a switch, the second switch, the third opening More to the third mode and the fourth disconnecting switch. The error reporting single-line transmission device of claim 12, wherein the error-returning single-line transmission device switches from the first mode to a fourth mode according to a third switching signal, and the error-returning single-line transmission device further The seventh switch is coupled between the detector and the error flag generator, and the seventh switch is switched according to the third switching signal, and the seventh switch is turned off in the fourth mode, where The seventh switch is turned on in the first mode, the second mode, and the third mode; The third switching signal is included in a third serial packet, and the third serial packet has multiple mode switching information, and one of the mode switching information corresponds to the error reporting single line transmission device. Each of the mode switching information includes the first switching signal or the third switching signal, and the data processor of the error reporting single line transmission device receives the third serial packet from the first end in the first mode, And finding, by the third serial packet, the mode switching information corresponding to the error reporting single line transmission device, and outputting the third serial packet through the second end; when the error reporting single line transmission device is from the first The mode switching information found in the three series of packets is the first switching signal, and the error reporting single line transmission device switches from the first mode to the second mode; when the error reporting single line transmission device is from the third The mode switching information found in the serial packet is the third switching signal, and the error reporting single line transmission device switches from the first mode to the fourth mode, the error is When the single-line transmission device is returned in the fourth mode, the third switch is turned on and the fourth switch is turned on, and when the error flag generator receives the second error flag symbol from the second end, The second error flag symbol is converted into the first error flag symbol, and then output by the first end, otherwise the error flag generator does not output the first error flag symbol from the first end, and After the error flag generator generates the first error flag symbol, the error reporting single line transmission device stops operating until the error reporting single line transmission device is reset back to the first mode, and the The second error flag symbol is coupled by the second end to the next level with a false return The first error flag symbol generated by the first end of the line transmission device. The error reporting single-line transmission device of claim 13, wherein the error-returning single-line transmission device further comprises: a mode controller coupled to the data processor, the first switch, the second switch, and the third The switch, the fourth switch, the fifth switch, the sixth switch, and the seventh switch are configured to receive the first switching signal, the second switching signal, or the third switching signal according to the data processor Controlling the first switch, the second switch, the third switch, the fourth switch, the fifth switch, the sixth switch, and the seventh switch to switch the error return single line transmission device by the first A mode switches to the second mode, the first mode switches to the third mode, or the first mode switches to the fourth mode. The faulty single-line transmission device of claim 14, wherein the error flag generator comprises: a detector coupled to the second end for detecting whether the second error is received a flag symbol for generating a detection signal; and a pulse wave generator coupled to the first end, the detector and the detector in the second mode, according to the detection signal, to generate the first The error flag symbol, or according to the detection signal, determining whether the detection signal has a second error flag symbol, and converting the detection signal into the first error flag symbol, and outputting through the first end; When the wave generator is in the fourth mode, the pulse generator is coupled to the first end and the detector, and according to the detection signal, the detection signal is converted into the first error flag symbol, and then First end output, and when the pulse After the wave generator generates the first error flag symbol, the error reporting single line transmission device stops operating until the error reporting single line transmission device is reset, wherein the second error flag symbol is from the second end The first error flag symbol generated by the first end of the faulty single-line transmission device is coupled to the lower level. The error reporting single-line transmission device of claim 10, wherein the error-returning single-line transmission device further comprises: a resetter coupled to the first end and the second end for detecting the first end And a signal transmission state of the second end, and the signal transmission state is that the first end and the second end do not receive or transmit any signal within a predetermined time, then resetting the error return single line transmission device to return The first mode. The error reporting single line transmission device of claim 1, wherein the error reporting single line transmission device receives a fourth serial packet in the first mode, the fourth serial packet includes the update data, and The fourth serial packet is output via the second end. A tandem faulty single-line transmission device comprising a plurality of error-returning single-line transmission devices as claimed in claim 1, wherein the error-returning single-line transmission devices are connected in series, wherein the error-returning single-line transmission devices In the first mode, the erroneous-reporting single-line transmission devices sequentially receive the first serial packet having the first switching signal by the first terminals, and obtain corresponding correspondences from the first serial packet. The update data, the first serial packet is outputted through the second end, and after all the serially connected error transmission single line transmission devices receive the first serial packet, according to the first switching signal, All in series The error-returning single-line transmission device switches from the first mode to the second mode, and when the error-reported single-line transmission devices are in the second mode, when one of the error-returning single-line transmission devices is connected in series The error state occurs, the error reporting single-line transmission device that generates the error state generates the first error flag symbol and is output by the first end thereof, and the error reporting single-line transmission device of the first stage in series is the first The error flag symbol is used as a second error flag symbol to receive the second error flag symbol by the second end and convert to the first error flag symbol and output by the first end until the first connection in series The first end of the erroneous return single line transmission device outputs the first error flag symbol. The erroneous-reporting single-line transmission device of claim 18, wherein the error-reported single-line transmission device stops operating after outputting the first error flag symbol by the first end until the error-returning single-line transmission The device resets and returns to the first mode. The tandem faulty single-line transmission apparatus according to claim 19, wherein all of the series-connected error-returning single-line transmission apparatuses return to the first mode, and all of the series-connected error-reported single-line transmission apparatuses further receive a second Switching a second serial packet of the signal, and after receiving the second serial packet, switching from the first mode to a third mode according to the second switching signal, when all the series are incorrectly reported When the single-line transmission device switches to the third mode, the error-returning single-line transmission device of the last stage of the series generates a first state information, and converts the first state information into an encoded signal, and is output by the first end. Tandem The error reporting single line transmission device of the upper level uses the encoded signal generated by the error reporting single line transmission device of the next stage in series as a second state information, and is received by the second end, and the device of the upper level is connected in series The error returning single line transmission device encodes the first state information and the second state information received by the second end to generate the encoded signal, and the encoded signal is output by the first end until the first one is connected in series The first end of the erroneous return single line transmission device outputs the encoded signal. The cascading error reporting single line transmission device of claim 20, wherein the first status information and the second status information comprise status information of temperature, current, and voltage source. The tandem error reporting single line transmission device of claim 20, wherein the data amount of the first error flag symbols is smaller than the data amounts of the first status information and the second status information. The tandem faulty single-line transmission device of claim 20, wherein all of the series of error-returning single-line transmission devices connected in series return to the first mode, and all of the series of error-returned single-line transmission devices in series receive a first a three-string packet, the third serial packet has a plurality of mode switching information, and each of the mode switching information corresponds to the pair of error-reported single-line transmission devices connected in series, and each of the mode switching information Include the first switching signal or a third switching signal, wherein when all the erroneously-reported single-line transmission devices connected in series receive the third serial packet from the first end, each of the concatenations has a false return The single-line transmission device finds the error report sheets from the third serial packet. Each of the mode switching information corresponding to the line transmission device determines to switch to the second mode or the fourth mode according to the corresponding mode switching information, and all the parts of the serially connected error transmitting single line transmission device are The second mode, the other part is in the fourth mode, or all of the erroneously-reported single-line transmission devices connected in series are in the second mode, or all of the erroneous-return single-line transmission devices connected in series are in the a four-mode; wherein, when all of the plurality of erroneous-return single-line transmission devices connected in series are in the second mode, if the error state occurs in the erroneous-reporting single-line transmission device in the second mode, the error report The first line transmission device generates the first error flag symbol and is output by the first end thereof, and the first error flag is sent to the second mode or the fourth mode in the second mode or the fourth mode a symbol as the second error flag symbol to receive the second error flag symbol by the second end and convert to the first error flag And outputting from the first end thereof, until the first end of the first erroneously-reported single-line transmission device in series outputs the first error flag symbol; wherein, when all the series are connected with the error return single line transmission When the one of the devices is in the fourth mode, if the error state of the single-line transmission device in the fourth mode occurs, the error reporting single-line transmission device does not generate the first error flag symbol and The first end outputs, and the second end of the error reporting single line transmission device receives the second error flag symbol, and then the received second error flag symbol is converted into the first error flag symbol. The first end of the output is connected until the first one of the faulty single-line transmission device The first end outputs the first error flag symbol. The tandem faulty single-line transmission device of claim 20, wherein the error states include temperature anomalies, current anomalies, voltage source open circuits, voltage source short circuits, or open circuit detection abnormalities. The cascading error-reporting single-line transmission device of claim 20, wherein the first ends of the erroneously-reported single-line transmission devices and the second ends are transmitted by any signal within a preset time, and the errors are The return single line transmission device will reset back to the first mode. The tandem error-reported single-line transmission device of claim 20, wherein all of the in-line error-reported single-line transmission devices in series receive a fourth serial packet in the first mode, the fourth serial packet including the update data.