Signal processing system and signal processing methods for vehicle sensors

Abstract

Signal processing system for vehicle sensors, comprising: a vehicle sensor unit (100) comprising the plurality of sensors previously provided in the vehicle, wherein the vehicle sensor unit acquires the acquisition information for each sensor at each preset time, and transmits the acquisition information a preset number of times or continuously; a computing and control unit (200) which receives the acquisition information for each sensor from the vehicle sensor unit (100) and analyzes the received acquisition information in order to define and transmit the acquisition information as output information; and a display unit (300) comprising a plurality of monitoring devices previously provided in the vehicle, transmitting the output information received from the computing and control unit (200) to the monitoring devices corresponding with the relevant sensor and outputting the output information via the monitoring devices; wherein the computing and control unit (200) performs the operation for each sensor, including: an information input unit (210) which receives the acquisition information for each sensor from the vehicle sensor unit (100); a comparison and calculation unit (220) that determines whether previously entered acquisition information is available when the acquisition information is entered via the information input unit (210), and immediately transfers the acquisition information to a storage unit (230) when the newly entered acquisition information is determined to be the first acquisition information; the storage unit (230), which comprises a plurality of storage devices and stores the initial acquisition information in a storage device when the initial acquisition information is transmitted via the comparison and computing unit (220) according to a corresponding result; a counting unit (240) that counts the number of acquisition information items stored in each of the storage devices; and an information output unit (250) that determines and transmits the acquisition information stored in the corresponding storage device when the number of acquisition information stored in each of the storage devices and counted by the counting unit (240) reaches a preset number.

Description

CROSS-REFERENCE TO RELATED REGISTRATIONS

[0001] This application claims priority under 35 USC § 119 of Korean patent application KR 102018106275 A filed on May 20, 2017 with the Korean Intellectual Property Office. TECHNICAL AREA

[0002] The following disclosure relates to a signal processing system and a signal processing method for vehicle sensors, and in particular to a signal processing system and a signal processing method for vehicle sensors that are capable of distinguishing a noise signal with high accuracy within a short period of time by comparing and analyzing the acquisition information input from the sensors in the vehicle, thereby effectively increasing the integrity and accuracy of the information output in the vehicle. BACKGROUND

[0003] To detect an error (noise) in the acquisition of information provided by multiple sensors in the vehicle, typically only when acquisition information with a specific value equal to or greater than a preset reference value (for example, reference number) is entered from a preset number of continuously entered acquisition information, the acquisition information with a specific measurement value is identified as a normal signal, and then when acquisition information with different measurement values ​​is entered within a preset number of continuously entered acquisition information, all the relevant acquisition information is identified as an error (noise), and thus acquisition information is re-entered in a preset number.

[0004] Therefore, if the error (noise) is detected by the procedure described above, a re-detection can only be performed if the detection information corresponding to a preset number of continuously entered detection data is re-entered, so it is inevitable that the information update will become very slow.

[0005] Korean patent no. 10-1150626 (“Signal processing device for processing and providing sensor signals”), hereinafter referred to as the prior art document, 1) discloses a signal processing device for receiving each of the sensor signals generated by various sensors with which the vehicle is equipped, for converting the received sensor signals into data for controlling a system, and for providing the data to one or more electronic control systems for a vehicle.

[0006] However, document 1 from the state of the art makes no mention whatsoever of error detection (noise detection). [Previous technical document][Patent specification]

[0007] Korean Patent No. 10-1150626 (Date of registration: May 21, 2012).

[0008] US Patent 2016 / 0112216 A1 discloses a signal processing system for vehicle sensors, comprising a vehicle sensor unit that incorporates a multitude of sensors previously installed in the vehicle and transmits the sensor data acquired by those sensors. The signal processing system further includes a computing and control unit that receives the sensor data for each sensor from the vehicle sensor unit. The computing and control unit compares and analyzes the received sensor data to determine and transmit only the acceptable sensor data as output.

[0009] US Patent 2013 / 0106596 A1 discloses a tooling system that sends a signal to activate / trigger or wake up a TPMS sensor installed in a pneumatic tire or wheel, whereupon the sensor responds and transmits a data signal to the tool. By directly reading and storing markings on a sensor or other target via optical scanning, the data signal received from the intended sensor can be compared with the directly scanned and stored sensor ID. This allows, for example, filtering out only the relevant signal from that specific sensor from multiple signals or verifying the received data signal. This results in more accurate and verified data received by the tool. DEPICTION

[0010] One embodiment of the present disclosure is directed to provide a signal processing system and a signal processing method for vehicle sensors that are capable of distinguishing a noise signal with high accuracy within a short time period by comparing and analyzing the acquisition information input from the sensors provided in the vehicle, thereby effectively increasing the integrity and accuracy of the information output by the vehicle. This objective is achieved by a signal processing system having the features of claims 1 and 2 and by a signal processing method having the features of claims 6 and 7.

[0011] In general terms, a vehicle sensor signal processing system comprises: a vehicle sensor unit 100, which includes a variety of sensors previously installed in the vehicle and transmits the acquisition information acquired by the sensors; a computing and control unit 200, which receives the acquisition information for each sensor from the vehicle sensor unit 100 and compares and analyzes the received acquisition information to distinguish only normal acquisition information from the acquisition information and to define and transmit the normal acquisition information as output information;and a display unit 300, which comprises a variety of monitoring devices previously provided in the vehicle, transmits the output information received from the computing and control unit 200 to the corresponding monitoring devices and outputs the output information via the monitoring devices.

[0012] The vehicle sensor unit 100 captures the acquisition information for each sensor at each preset time and transmits the acquisition information to the computing and control unit 200 a preset number of times or continuously.

[0013] The computing and control unit 200 comprises: an information input unit 210, which receives the acquisition information for each sensor from the vehicle sensor unit 100; a comparison and computing unit 220, which determines whether previously entered acquisition information is present when the acquisition information is entered via the information input unit 210, and immediately transmits the acquisition information to the storage unit 230 if the acquisition information is initial acquisition information without previously entered acquisition information; a storage unit 230, which comprises a plurality of storage devices and stores the initial acquisition information in a storage device when the initial acquisition information is transmitted via the comparison and computing unit 220; a counting unit 240, which counts the number of acquisition information items stored in each of the storage devices;and an information output unit 250, which determines and transmits the acquisition information stored in the corresponding storage devices when the number of acquisition information items stored in the storage devices, which are counted by the counting unit 240, reaches a preset number.

[0014] The comparison and calculation unit 220 determines whether previously entered data acquisition information is available when the data acquisition information is entered via the information input unit 210, and compares and analyzes whether newly entered data acquisition information corresponds to the previously entered data acquisition information if it is determined that previously entered data acquisition information is available, and immediately transmits the data acquisition information to the storage unit 230 if the data acquisition information corresponds to the newly entered data acquisition information from previously entered data acquisition information, and the storage unit 230 can store the newly entered data acquisition information in the storage facilities in which the previously entered data acquisition information corresponding to the newly entered data acquisition information is stored.

[0015] The comparison and calculation unit 220 can determine whether previously entered data acquisition information exists when the data acquisition information is entered via the information input unit 210, compare and analyze whether the newly entered data acquisition information corresponds to the previously entered data acquisition information when it is determined that previously entered data acquisition information exists, and immediately transfer the data acquisition information to the storage unit 230 if no data acquisition information corresponds to the newly entered data acquisition information from the previously entered data acquisition information, and the storage unit 230 can store the newly entered data acquisition information in a new storage device.

[0016] The comparison and calculation unit 220 compares and analyzes whether the newly entered data collection information matches the previously entered data collection information by applying a preset error range.

[0017] The computing and control unit 200 can control the storage unit 230 when specific acquisition information is set as output information and transmitted via the information output unit 250 to reset the remaining storage devices except for the storage device in which the specific acquisition information is set as output information.

[0018] According to another general aspect, a signal processing procedure for vehicle sensors comprises: a acquisition step (S100) for acquiring acquisition information via a vehicle sensor unit through a multitude of sensors previously provided in the vehicle and for transmitting the acquired acquisition information to a computing and control unit; a fault detection step (S200) for comparing and analyzing the acquisition information received for each sensor in the acquisition step (S100) via the computing and control unit 200 in order to distinguish only normal acquisition information from the acquisition information, to define the distinguished normal acquisition information as output information, and to transmit the defined output information to a display unit;and a display step (S300) for transmitting the output information received in the fault detection step (S200) via the display unit to a corresponding monitoring device among a plurality of monitoring devices previously provided in the vehicle and for outputting the output information.

[0019] The fault detection step (S200) comprises: an input step (S210) for entering the acquisition information for each sensor in the acquisition step (S100); a first determination step (S220) to determine whether previously entered acquisition information is present when the acquisition information is entered in the input step (S210); a first storage step (S230) to store the acquisition information in a storage device when the result of the first determination step (S220) is determined to be the first acquisition information; a second determination step (S240) to compare and analyze whether the acquisition information corresponds to the previously entered acquisition information when the result of the first determination step (S220) is determined to be the first acquisition information;a second storage step (S250) for storing newly entered data collection information in the storage device in which the previously entered data collection information corresponding to the newly entered data collection information is stored, if the result of the second investigation step (S240) is determined to be that data collection information exists that corresponds to the newly entered data collection information derived from the previously entered data collection information; a third storage step (S260) for storing newly entered data collection information in a new storage device if the result of the second investigation step (S240) is determined to be that no data collection information corresponds to the newly entered data collection information derived from the previously entered data collection information;a counting step (S270) for counting the number of acquisition information items stored in each storage device in the first storage step (S230), the second storage step (S250), and the third storage step (S260); and an output step (S280) for setting and transferring acquisition information to be stored in the corresponding storage device when the number of acquisition information items stored in each of the storage devices and counted in the counting step (S270) reaches a preset number.

[0020] In the second investigation step (S240), it can be compared and analyzed whether the newly entered data collection information corresponds to the previously entered data collection information by applying a preset error range.

[0021] If the specific acquisition information is set and transferred as output information in output step S280, the remaining storage devices, except for the storage device in which the specific acquisition information set as output information is stored, can be reset.

[0022] Further features and aspects will emerge from the following detailed description, the drawings, and the claims. BRIEF DESCRIPTION OF THE DRAWINGS Fig. Figure 1 is a diagram illustrating a signal processing system for sensors of a vehicle according to an exemplary embodiment of the present invention. Fig. Figure 2 is a flowchart illustrating a signal processing method for sensors of a vehicle according to an exemplary embodiment of the present invention. Fig. Figure 3 is an exemplary diagram illustrating an operational process of the signal processing method for sensors of a vehicle according to the exemplary embodiment of the present invention. [Detailed description of the main elements] 100 vehicle sensor units 200 computing and control units 210 Information input unit 220 comparison and calculation unit 230 storage unit 240 counting units 250 information output units 300 display units DETAILED DESCRIPTION OF EXECUTION FORMS

[0023] A signal processing system and a signal processing method for vehicle sensors according to an exemplary embodiment of the present invention are described in more detail below with reference to the accompanying drawings. The drawings shown below are provided as examples so that the spirit of the present invention can be sufficiently illustrated for the person skilled in the art to whom the present invention relates. Therefore, the present invention is not limited to the drawings provided below, but can also be implemented in other forms. Furthermore, the same reference numerals throughout the description denote the same elements.

[0024] Technical and scientific terms used in this description have the general meaning understood by the person skilled in the art to whom the present invention relates, unless otherwise defined, and any description of the known function and configuration which unnecessarily obscures the content of the present invention is omitted from the following description and the accompanying drawings.

[0025] Furthermore, the system comprises an arrangement of components, including devices, mechanisms, units, etc., which are arranged and regularly interact with each other to perform required functions.

[0026] A signal processing system and a signal processing method for vehicle sensors according to an exemplary embodiment of the present invention effectively compare and analyze input signals (detection information) to increase the integrity and accuracy of the signals input via the vehicle's sensors and output to a driver (user, vehicle operator), distinguishing noise (error) signals with high accuracy within a short discrimination time period and effectively outputting normal signals.

[0027] Fig. Figure 1 is a configuration diagram representing a signal processing system for vehicle sensors according to an exemplary embodiment of the present invention. The signal processing system for vehicle sensors according to the exemplary embodiment of the present invention is described in more detail below. Fig. 1 described.

[0028] The signal processing system for vehicle sensors according to an exemplary embodiment of the present invention can comprise a vehicle sensor unit 100 with a plurality of sensors previously installed in the vehicle, as well as a computing and control unit 200 that receives acquisition information from the vehicle sensor unit 100, and a display unit 300 that comprises a plurality of monitoring devices previously provided in the vehicle, in which the vehicle sensor unit 100, the computing and control unit 200 and the display unit 300 preferably transmit / receive information data based on vehicle communication.

[0029] In general, any CAN, LIN, PWM, SENT or similar protocol can be used for vehicle communication.

[0030] The vehicle sensor unit 100 preferably comprises a plurality of sensors which are provided at different positions in the vehicle.

[0031] Preferably, the computing and control unit 200 is equipped with an electronic control unit (ECU) that is previously provided in the vehicle to collect acquisition information.

[0032] The display unit 300 can also include a variety of monitoring devices (instrument panel, cluster, control panel, dashboard or the like) which are provided at various positions in the vehicle.

[0033] Each component is described in detail.

[0034] As described above, the vehicle sensor unit 100 comprises a variety of sensors previously provided in the vehicle and can transmit acquisition information acquired via the sensors to the computing and control unit 200.

[0035] The vehicle sensor unit can capture 100 pieces of information for each sensor at any preset time and transmit the captured information to the computing and control unit 200 a preset number of times or continuously.

[0036] For example, if, when comparing the fuel level with the washer fluid level, the fuel level information is updated later than the washer fluid level information, there is a high risk of fatal vehicle failure. Therefore, it is preferable for the fuel level information to be collected more frequently than the washer fluid level. It is preferable for the preset time and number of times to be set in advance at the time of vehicle design; however, these preset times and numbers can be modified according to a driver's requirements.

[0037] The computing and control unit 200 receives the acquisition information for each sensor from the vehicle sensor unit 100. Since most of the control devices, such as a monitoring unit from which the acquisition information is output, an output unit, an update reference and an update interval, are different for each sensor, the acquisition information for each sensor is received separately.

[0038] The computing and control unit 200 can compare and analyze the received acquisition information, distinguish only normal acquisition information from the acquisition information, and define and output the distinguished normal acquisition information as output information.

[0039] A detailed configuration of the computing and control unit 200 will be described in detail later.

[0040] The display unit 300 can incorporate a variety of monitoring devices previously provided in the vehicle and transmit the information from the computing and control unit 200 to the corresponding monitoring devices and output the information via the monitoring devices, so that the driver (user, vehicle operator) can quickly check the vehicle's condition.

[0041] For example, if the output information received by the computing and control unit 200 is information about the fuel level, a fuel gauge of a main cluster is preferably used as the appropriate monitoring device, and if the output information is external temperature information, the dashboard, which is the control panel section, or an external display section of a cluster is preferably used as the appropriate monitoring device.

[0042] As in Fig. As shown in Figure 1, the computing and control unit 200 can be designed to include an information input unit 210, a comparison and computing unit 220, a storage unit 230, a counting unit 240 and an information output unit 250.

[0043] The information input unit 210 receives the acquisition information for each sensor from the vehicle sensor unit 100. As described above, the information input unit 210 receives the acquisition information separately for each sensor.

[0044] When the data acquisition information is entered via the information input unit 210, the comparison and calculation unit 220 preferably determines whether data acquisition information has been entered prior to the data acquisition information.

[0045] If, depending on the investigation result, no prior data entry information is available, this means that if the data entry information is the first data entry information, the data entry information will be set as the first data entry information and transferred to storage unit 230.

[0046] The storage unit 230 is designed to comprise a plurality of storage devices (or buffer devices, which, however, are collectively expressed as a storage device in the signal processing system and signal processing method for sensors of a vehicle according to the exemplary embodiment of the present invention), and as described in Fig. As shown in Figure 3A, when the first acquisition information, which is the first acquisition information entered via the comparison and calculation unit 220, is transmitted, the storage unit 230 selects a storage device from the multitude of storage devices and stores the first acquisition information, which is the first acquisition information entered.

[0047] If the first capture information, which is the first captured information entered, is transferred, this means that no capture information is entered into any of the multitude of storage facilities, and it is therefore preferred that a selected storage facility be chosen randomly.

[0048] If, depending on the investigation result, the comparison and calculation unit 220 determines that the recording information was entered before the recording information, this means that the recording information is not the first entered recording information, but newly entered recording information, and the comparison and calculation unit 220 can compare and analyze whether the newly entered recording information corresponds to the previously entered recording information.

[0049] It is preferred that the comparison and processing unit 220 compares and analyzes the newly entered acquisition information with the previously entered acquisition information by applying a preset error range. Since the possibility that the acquisition information entered by the sensors in the vehicle is entered as an integer is particularly low, the acquisition performance can be improved by applying the error range in between.

[0050] The error range is preferably set in advance at the time of the vehicle's construction, as described above; however, the error range can be changed depending on the user's requirements.

[0051] In addition to comparing and analyzing whether the newly entered data collection information matches the previously entered data collection information, if data collection information matching the newly entered data collection information is available, the comparison and calculation unit 220 will designate the data collection information as redundant data collection information and transfer the redundant data collection information to the storage unit 230.

[0052] As in Fig. As shown in Figure 3B, when the redundant acquisition information is transferred via the comparison and processing unit 220, the storage unit 230 selects the storage device from among the multiple storage devices available for storing the redundant acquisition information in which the previously entered acquisition information corresponding to the newly entered acquisition information is stored. This means that the corresponding (matching) acquisition information is stored in the same storage device.

[0053] The computing and control unit 200 can use the counting unit 240 to count the number of acquisition information stored in each storage device.

[0054] This means that if, as described above, the corresponding (matching) capture information is stored in the same storage device due to the redundant capture information, the number of capture information stored in the corresponding storage device is positive (+) due to the counting unit 240.

[0055] In this way, when the number of acquisition information stored in each storage device and counted by the counting unit 240 reaches a predetermined number, the information output unit 250 outputs the specific acquisition information stored in the corresponding storage device as output information and transmits the output information to the display unit 300.

[0056] The preset number is preferably configured in advance during the vehicle's design phase, but can be changed depending on user requirements. In the case of outputting the vehicle's internal data acquisition information, this information is crucial for driving the vehicle and is therefore preferably retained, meaning it is preset during the vehicle's design phase rather than during operation by the driver.

[0057] Additionally, when the specific acquisition information is set as output information and transferred to the display unit 300 by actuating the information output unit 250, the storage unit 230 is controlled by the computing and control unit 200 to reset the remaining storage units except for the storage unit in which the specific acquisition information is set as output information.

[0058] In other words, depending on the result of comparing and analyzing the acquisition information, the computing and control unit 200 distinguishes the specific acquisition information, which is defined as output information, from normal acquisition information, and outputs the normal acquisition information to update the information. It is therefore preferred that the subsequently entered acquisition information be compared and analyzed again based on the updated information, with the computing and control unit 200 resetting the remaining storage devices except for the storage device in which the specific acquisition information is stored, in order to delete the stored acquisition information so that the newly entered acquisition information can be continuously and accurately distinguished.

[0059] Based on the result of comparing and analyzing whether the newly entered data collection information corresponds to the previously entered data collection information, if no data collection information corresponds to the newly entered data collection information from the previously entered data collection information, the comparison and calculation unit 220 will additionally define the data collection information as additional data collection information and transfer the additional data collection information to the storage unit 230.

[0060] When the additional acquisition information, which is the newly entered acquisition information via the comparison and calculation unit 220, is transferred, the storage unit 230 selects a new storage device without the stored acquisition information from the multitude of storage devices in order to store the additional acquisition information.

[0061] Fig. Figure 2 is a flowchart illustrating a signal processing method for vehicle sensors according to an exemplary embodiment of the present invention. The signal processing method for vehicle sensors according to the exemplary embodiment of the present invention is described in detail with reference to Fig. 2 described.

[0062] When the additional acquisition information, which is the newly entered acquisition information via the comparison and calculation unit 220, is transferred, the storage unit 230 selects a new storage device without the stored acquisition information from the multitude of storage devices in order to store the additional acquisition information.

[0063] Fig. Figure 2 is a flowchart illustrating a signal processing method for vehicle sensors according to an exemplary embodiment of the present invention. The signal processing method for vehicle sensors according to the exemplary embodiment of the present invention is described in more detail below. Fig. 2 described.

[0064] As in Fig. As shown in Figure 2, the signal processing method for sensors for a signal according to the exemplary embodiment of the present invention comprises a detection step (S100), a fault detection step (S200), and a display step (S300), in which the detection step (S100), the fault detection step (S200), and the display step (S300) transmit / receive information data based on vehicle communication.

[0065] In general, any CAN, LIN, PWM, SENT or similar protocol can be used for vehicle communication.

[0066] Each step is described in detail below.

[0067] In the acquisition step (S100), the vehicle sensor unit 100 can receive the acquisition information from the multitude of sensors previously provided in the vehicle and transmit the acquired acquisition information to the computing and control unit 200.

[0068] In the acquisition step (S100), the vehicle sensor unit 100 can acquire the acquisition information for each sensor at each preset time and transmit the acquired acquisition information to the computing and control unit 200 to transmit the acquired acquisition information to the computing and control unit 200 a preset number of times or continuously.

[0069] In the fault detection step (S200), the computing and control unit 200 compares and analyzes the acquisition information received for each sensor in the acquisition step (S100) in order to distinguish only the normal acquisition information from the non-normal acquisition information, to define the distinguished normal acquisition information as output information and to transmit the defined output information to the display unit 300.

[0070] In the fault detection step (S200), the computing and control unit 200 receives the acquisition information for each sensor from the acquisition step (S100). Since most of the control units, such as a monitoring unit, an output unit, an update reference, and an update interval, that are output for a sensor are different, the acquisition information is received separately for each sensor.

[0071] As in Fig.As shown in Figure 2, the error detection step (S200) can include an input step (S210), a first detection step (S220), a first storage step (S230), a second detection step (S240), a second storage step (S250), a third storage step (S260), a counting step (S270), and an output step (S280).

[0072] In the input step (S210), the information input unit 210 receives the acquisition information for each sensor from the acquisition step (S100) and receives, as described above, the acquisition information separately for each sensor.

[0073] In the first investigation step (S220), when the data entry information is entered in the input step (S210), the comparison and calculation unit 220 determines whether previously entered data entry information precedes the data entry information. This means it determines whether the data entry information is the first data entry information.

[0074] In the first storage step (S230), if the result of the first investigation step (S220) is that no previously entered data acquisition information precedes the data acquisition information, i.e., if the data acquisition information is the first data acquisition information entered, the comparison and calculation unit 220 defines the data acquisition information as the first data acquisition information and transfers the first data acquisition information to the storage unit 230.

[0075] When the first acquisition information, which is the first entered acquisition information, is transmitted via the comparison and computing unit 220, the storage unit 230 selects one from a variety of storage devices to store the first acquisition information, which is the first entered acquisition information.

[0076] If the first capture information, which is the first captured information entered, is transferred, this means that no capture information is entered into any of the multitude of storage facilities and it is therefore preferable that a selected storage facility be determined randomly.

[0077] In the second investigation step (S240), if the investigation result from the first investigation step (S220) is that previously entered data entry information is present, i.e., that the previously entered data entry information is present before the data entry information and thus the data entry information is not the first entered data entry information, but newly entered data entry information, the comparison and calculation unit 220 compares and analyzes whether the newly entered data entry information corresponds to the previously entered data entry information.

[0078] In the second step of the investigation (S240), it is preferred to compare and analyze whether the newly entered data corresponds to the previously entered data by applying the preset error range. Since the probability that the data entered by the sensors in the vehicle is a whole number is particularly low, the data acquisition performance can be improved by applying the error range in between.

[0079] The error range is preferably set in advance at the time of the vehicle's construction, as described above; however, the error range can be changed depending on the user's requirements.

[0080] In the second storage step (S250), if the result of the second investigation step (S240) is that previously entered acquisition information is present before the acquisition information, i.e., the acquisition information is the first entered acquisition information, the comparison and calculation unit 220 defines the acquisition information as redundant acquisition information and transfers the redundant acquisition information to the storage unit 230.

[0081] When redundant data acquisition information is transmitted, storage unit 230 selects from the multitude of storage devices the one containing previously entered data acquisition information that corresponds to the newly entered data acquisition information, in order to store the redundant data acquisition information. This means that the corresponding (matching) data acquisition information is stored in the same storage device.

[0082] In the third storage step (S260), if the result of the second investigation step (S240) is that no recording information is available that corresponds to the newly entered recording information from the previously entered recording information, the comparison and calculation unit 220 defines the newly entered recording information as additional recording information and transfers the additional recording information to the storage unit 230.

[0083] When the additional acquisition information is transferred, storage unit 230 selects a new storage device without the stored acquisition information from the multitude of storage devices in order to store the additional acquisition information.

[0084] In the counting step (S270), the counting unit 240 can count the number of acquisition information pieces that have been stored in real time in each of the storage devices in the first storage step (S230), the second storage step (S250), and the third storage step (S260).

[0085] Specifically, if the corresponding (matching) acquisition information is stored in the same storage device due to the redundant acquisition information, the number of acquisition information pieces stored in the corresponding storage device is positive (+) in counting step 270.

[0086] In the output step (S280), when the number of acquisition information pieces stored in real time in each of the storage devices and counted in the counting step (S270) reaches a preset number, the information output unit 250 defines the acquisition information stored in the corresponding storage device as output information and transmits the output information.

[0087] Here, the preset number is preferably determined in advance at the time of the vehicle's design, but can also be changed depending on the user's requirements. In contrast, if the vehicle's internal data acquisition information is output, this information becomes the primary data while driving the vehicle and is therefore preferably retained, meaning it should be preset at the time of the vehicle's design rather than during operation by the driver.

[0088] Additionally, if in the output step (S280) the specific acquisition information is specified as the output information, the remaining storage devices except for the storage device in which the specific acquisition information is stored as output information are reset.

[0089] In other words, in the error detection step (S200), the specific acquisition information, which is defined as output information, is distinguished from normal acquisition information depending on the result of comparing and analyzing the acquisition information, and the normal acquisition information is output to update the information. Therefore, it is preferred that the subsequently entered acquisition information is again compared and analyzed based on the updated information, with the remaining storage devices, except for the storage device in which the specific acquisition information is stored, being reset to delete the stored acquisition information so that the newly entered acquisition information can be continuously and accurately distinguished.

[0090] In display step S300, the display unit 300 transmits the output information received in fault detection step S200 and outputs it to the appropriate monitoring devices from the multitude of monitoring devices previously provided in the vehicle, so that the driver (user, vehicle operator) can quickly check the vehicle's condition.

[0091] For example, if the output information received from the computing and control unit 200 is fuel level information, a fuel gauge of a main cluster is preferably used as the corresponding monitoring device, and if the output information is outside temperature information, the dashboard, which is the control panel section or an outside display section of a cluster, is preferably used as the corresponding monitoring device.

[0092] In other words, the signal processing system and signal processing method for vehicle sensors according to an exemplary embodiment of the present invention distinguish noise (error) signals with high accuracy in a short discrimination time period and effectively output normal signals by effectively comparing and analyzing the input signals (detection information), thereby improving the integrity and accuracy of the signals output to a driver (user, vehicle operator).

[0093] The signal processing system and signal processing method for vehicle sensors according to the present invention, designed as described above, can distinguish the abnormal acquisition information, i.e., the noise signal (error signal), from the acquisition information with high accuracy within a short time period by comparing and analyzing the acquisition information input from the sensors provided in the vehicle.

[0094] As a result, it is possible to effectively increase the integrity and accuracy of the information output to the vehicle.

Claims

[1] Signal processing system for sensors of a vehicle, comprising: a vehicle sensor unit (100) comprising the plurality of sensors previously provided in the vehicle, wherein the vehicle sensor unit acquires the acquisition information for each sensor at each preset time, and transmits the acquisition information a preset number of times or continuously; a computing and control unit (200) which receives the acquisition information for each sensor from the vehicle sensor unit (100) and analyzes the received acquisition information in order to define and transmit the acquisition information as output information; and a display unit (300) comprising a plurality of monitoring devices previously provided in the vehicle, transmitting the output information received from the computing and control unit (200) to the monitoring devices corresponding with the relevant sensor and outputting the output information via the monitoring devices; wherein the computing and control unit (200) performs the operation for each sensor, including: an information input unit (210) which receives the acquisition information for each sensor from the vehicle sensor unit (100); a comparison and calculation unit (220) that determines whether previously entered acquisition information is available when the acquisition information is entered via the information input unit (210), and immediately transfers the acquisition information to a storage unit (230) when the newly entered acquisition information is determined to be the first acquisition information; the storage unit (230), which comprises a plurality of storage devices and stores the initial acquisition information in a storage device when the initial acquisition information is transmitted via the comparison and computing unit (220) according to a corresponding result; a counting unit (240) that counts the number of acquisition information items stored in each of the storage devices; and an information output unit (250) that determines and transmits the acquisition information stored in the corresponding storage device when the number of acquisition information stored in each of the storage devices and counted by the counting unit (240) reaches a preset number. [2] Signal processing system for sensors of a vehicle, comprising: a vehicle sensor unit (100) comprising the plurality of sensors previously provided in the vehicle, wherein the vehicle sensor unit acquires the acquisition information for each sensor at each preset time, and transmits the acquisition information a preset number of times or continuously; a computing and control unit (200) which receives the acquisition information for each sensor from the vehicle sensor unit (100) and analyzes the received acquisition information in order to define and transmit the acquisition information as output information; and a display unit (300) comprising a plurality of monitoring devices previously provided in the vehicle, transmitting the output information received from the computing and control unit (200) to the monitoring devices corresponding with the relevant sensor and outputting the output information via the monitoring devices; wherein the computing and control unit (200) performs the operation for each sensor, including: an information input unit (210) which receives the acquisition information for each sensor from the vehicle sensor unit (100); a comparison and calculation unit (220) that determines whether previously entered acquisition information is available when the acquisition information is entered via the information input unit (210), and compares and analyzes whether the newly entered acquisition information corresponds to the previously entered acquisition information by applying a preset error range; a storage unit (230) comprising a plurality of storage devices and storing newly entered acquisition information in a selected storage device according to a corresponding result of the comparison and calculation unit (220); a counting unit (240) that counts the number of acquisition information items stored in each of the storage devices; and an information output unit (250) that determines and transmits the acquisition information stored in the storage device when the number of acquisition information stored in each of the storage devices and counted by the counting unit (240) reaches a preset number. [3] Signal processing system according to claim 2, wherein the comparison and computing unit (220) compares and analyzes whether newly entered acquisition information corresponds to the previously entered acquisition information by applying a preset error range, and immediately transfers the acquisition information to the storage unit (230) if the acquisition information corresponds to the newly entered acquisition information from the previously entered acquisition information, and the storage unit (230) stores the newly entered acquisition information in the storage device in which the previously entered acquisition information corresponding to the newly entered acquisition information is stored. [4] Signal processing system according to claim 2, wherein the comparison and computing unit (220) compares and analyzes whether newly entered acquisition information corresponds to the previously entered acquisition information by applying a preset error range, and immediately transfers the acquisition information to the storage unit (230) if no acquisition information is available that corresponds to the newly entered acquisition information from the previously entered acquisition information, and the storage unit (230) stores the newly entered acquisition information in a new storage device. [5] Signal processing system according to one of claims 1 or 2, wherein the computing and control unit (200) controls the storage unit (230) when specific acquisition information is specified as output information and transmitted via the information output unit (250) to reset the remaining storage devices except for the storage device in which the specific acquisition information specified as output information is stored. [6] Signal processing methods for vehicle sensors, comprising: a data acquisition step to acquire data acquisition information for each sensor at each preset time, from a vehicle sensor unit (100) via a plurality of sensors previously provided in the vehicle and to transmit the acquired data acquisition information to the computing and control unit (S100) a preset number of times or continuously; a fault detection step for analyzing the acquisition information received for each sensor in the acquisition step (S100) via the computing and control unit, defining the acquisition information as output information, and transmitting the defined output information to a display unit (S200); and a display step for transmitting the output information received in the fault detection step (S200) to a corresponding monitoring device that corresponds to the relevant sensor, from a plurality of monitoring devices previously provided in the vehicle, via the display unit and outputting the output information (S300); wherein the fault detection step (S200) comprises: an input step (S210) for entering acquisition information for each sensor from the acquisition step (S100); a first investigation step (S220) to determine whether previously entered data entry information is available when the data entry information is entered in the input step (S210); a first storage step (S230) to store the acquisition information in a newly selected storage device, if the determination result of the first determination result from the first determination step (S220) is determined that the acquisition information is determined as the first acquisition information; a counting step (S270) to count the number of acquisition information items stored in each storage device; and an output step (S280) for setting and transferring acquisition information stored in the relevant storage device when the number of acquisition information items stored in each of the storage devices and counted in the counting step (S270) reaches a preset number. [7] Signal processing methods for vehicle sensors, comprising: a data acquisition step (S100) for acquiring data acquisition information for each sensor at each preset time, from a vehicle sensor unit (100) via a plurality of sensors previously provided in the vehicle and for transmitting the acquired data acquisition information to the computing and control unit a preset number of times or continuously; an error detection step (S200) for analyzing the acquisition information received for each sensor in the acquisition step (S100) via the computing and control unit, defining the acquisition information as output information, and transmitting the defined output information to a display unit; and a display step (S300) for transmitting the output information received in the fault detection step (S200) to a corresponding monitoring device that corresponds to the relevant sensor, from a plurality of monitoring devices previously provided in the vehicle, via the display unit and outputting the output information; wherein the fault detection step (S200) comprises: an input step (S210) for entering acquisition information for each sensor from the acquisition step (S100); a first investigation step (S220) to determine whether previously entered data entry information is available when the data entry information is entered in the input step (S210); a second investigation step (S240) to compare and analyze whether the recording information corresponds to the previously entered recording information, if the investigation result from the first investigation step (S220) is that previously entered recording information is present; a second storage step (S250) for storing newly entered acquisition information in the storage device in which the previously entered acquisition information corresponding to the newly entered acquisition information is stored, if the determination result of the second determination step is that acquisition information is available that corresponds to the newly entered acquisition information from the previously entered acquisition information; a third storage step (S260) to store the newly entered acquisition information in a new storage device if the second investigation step (S240) determines that no acquisition information is available that corresponds to the newly entered acquisition information from the previously entered acquisition information; a counting step (S270) to count the number of acquisition information items stored in each storage device; and an output step (S280) for setting and transferring acquisition information stored in the relevant storage device when the number of acquisition information items stored in each of the storage devices and counted in the counting step (S270) reaches a preset number. [8] Signal processing method according to one of claims 6 or 7, wherein when the specific acquisition information is set and transmitted as output information in the output step (S280), the remaining storage devices except for the storage device in which the specific acquisition information set as output information is stored are reset.

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