EP3729576A2 - Automatic multi-channel electronic test and measurement device - Google Patents
Automatic multi-channel electronic test and measurement deviceInfo
- Publication number
- EP3729576A2 EP3729576A2 EP19877746.8A EP19877746A EP3729576A2 EP 3729576 A2 EP3729576 A2 EP 3729576A2 EP 19877746 A EP19877746 A EP 19877746A EP 3729576 A2 EP3729576 A2 EP 3729576A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- measurement
- unit
- measurement device
- analog
- main processor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
- B60R16/0231—Circuits relating to the driving or the functioning of the vehicle
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/005—Testing of electric installations on transport means
- G01R31/006—Testing of electric installations on transport means on road vehicles, e.g. automobiles or trucks
- G01R31/007—Testing of electric installations on transport means on road vehicles, e.g. automobiles or trucks using microprocessors or computers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/2832—Specific tests of electronic circuits not provided for elsewhere
- G01R31/2836—Fault-finding or characterising
- G01R31/2844—Fault-finding or characterising using test interfaces, e.g. adapters, test boxes, switches, PIN drivers
Definitions
- the invention relates to a mobile automatic test, measurement and analysis device that is capable of measuring multi-channel analog signals, suitable for wireless connection and having ultra-low power consumption.
- I n automotive industries manual testing instruments are used in in-vehicle cable and signal measurement. I n addition to these manual testing instruments, automatic and semi-automatic systems are provided as well, however, they can carry out a measurement only in a very limited range of channels and also need an external power source (For example: mains electricity) .
- I n manual systems, signals and cables of a vehicle are individually measured by a technician and by use of a measurement device with reference to detailed schematics of the vehicle.
- Manual measurement instruments allow measuring by partially being connected to cable harnesses provided in the vehicle.
- I n current automatic systems, manual testing instruments or dedicated bridging cables are still used; moreover points to be measured are manually connected by a technician and measured through a computer program with reference to connections in schematics.
- I t requires using an external measurement device for manual measurements. I naccurate measurements resulting from both improper use of the measurement device and also from device calibration problems.
- Use with bad intention occurs when a technician manipulates the measurement results and tries to receive spare parts from manufacturers under warranty.
- connection to the signals to be measured is separately conducted by the technician and subsequently an automated measurement is started.
- the personnel needs to continuously change the connections of the test box in order to measure all channels.
- Automatic measurement systems at such a level cannot provide a detailed report, and they can only partially reduce the problems related to the technical staff and the time consumed.
- a fault can only be detected by testing separate signals or cables individually. There is no structure that can analyze the entire system at once and this increases cost of time and human resource.
- the technician who uses manual test boxes for on-site maintenance and repair services, needs to obtain electrical schemas and signal types of the vehicle for detecting the failure on-site.. This leads to remarkable loss of time and inaccurate detection when the technician attempts to achieve manually the correct testing procedure out of thousands of signals.
- online systems are used at the stage of access and access to online systems may not be ensured everywhere, operations can only be carried out in services. Therefore, lack of mobility arises.
- the present invention relates to a mobile automatic test, measurement and analysis device that has been developed in order to eliminate the disadvantages mentioned above and to provide novel advantages to the related art.
- multi-channel structures Structures in which the number of measurement channels can be expandable up to hundreds when required, and channels can be shorted to one another and/or routed to measurement unit separately are called multi-channel structures.
- the invention has channel capacity of 20 channels and above. I n the preferred embodiments, the number of channels may be 100 and above.
- An aim of the invention is; to produce an automatic testing box capable of carrying out multi channel measurements and thus to eliminate the problems of the industry including measurement, failure detection, lack of technical staff , higher repair costs, cost of unnecessary spare parts, reporting and data management.
- Another aim of the invention is; to alleviate the problems resulting from manual and semiautomatic measurement systems.
- a further aim of the invention is; to solve problems such as incorrect detection or failure to detect fault and thereby to save companies from higher cost and loss of time.
- Another further aim of the invention is; to increase service quality and thus customer satisfaction.
- Another aim of the invention is; to provide an innovation to the current process by means of automation of the processes conducted by manual measurement devices.
- An aim of the invention is; to reduce high cost of repairs and spare parts for the vehicles under the warranty of the manufacturing companies and to eliminate problems related to repair times and thus to maximize customer satisfaction.
- Our invention is capable of eliminating all of the problems within a very short time by automatically controlling the entire system at once.
- I t can be used in all vehicle maintenance, vehicle service, mobile service, ex-factory tests.
- I t is suitable to be used in air, land and naval vehicles in the industry.
- the invention is suitable to be used in maintenance and repair services of all manufacturers that manufacture heavy vehicles.
- I t requires using an external measurement device for manual measurements. I naccurate measurements result from both improper use of the measurement device and also calibration problems of said device. This drawback is completely eliminated with our invention.
- Use with bad intention I t solves the problems of uses with bad intention that occurs when a technician manipulates the measurement results in order to obtain free products under warranty from the manufacturers.
- connection points cause faults in measurements. I naccurate measurements lead to unnecessary replacement of parts and higher cost of service. With the present invention, the need for additional measurement devices to which a connection is carried out is eliminated and the problem thereby is solved.
- the invention can operate by being connected to a mobile phone or a low power supply (such as tablets, power banks etc.) with the principle of low- energy, and with its portable case design, can supply services at all points and thus the invention solves the problem of mobility. This substantially reduces the drawbacks of time consumption and cost of human resources. I n military vehicle applications, these factors pose strategic importance.
- the systems which do not require to be connected to mains electricity, can obtain operational energy through mobile electronic devices and consume power of only 5 Watt and below are referred as low power systems in this document.
- the invention by measuring all signals of the vehicle at once; eliminates the problems including measurement device related faults, long periods of time consumed for fault detection; higher costs related to these problems and the problems of technical staff in fault detection process.
- the device is located as a bridge between a controller and cabling of said device in a vehicle.
- the device automatically obtains data of said vehicle (vehicle identification number, malfunction codes, etc.) .
- the device is able to communicate via Bluetooth interface.
- the device provides mobility by being able to use energy through any device that has USB connection.
- the device provides electrical insulation on the USB connection.
- the device is connected in series to a cable set of a unit of the vehicle to be tested.
- the device carries out fully automatic measurement.
- the device operates without the need for an external measurement device.
- the device is able to report all measurements and print out or digitally archive them depending on user’s preferences.
- the channels of the device to be used in testing and measurement can be increased.
- the device carries out inline measurement by connecting to the cable set in series.
- the device carries out calibration within itself before starting the measurement in order to ensure that measurement results will be accurate.
- the device has sensors that enable to detect not only if the device has fallen down, but also, the angle at which it has fallen down and the parts that has been damaged by means of a security unit used therein.
- said security unit comprises its own battery system that enables the device to continue operating even without being connected to another power unit.
- bridging channels and signal measuring channels are dedicated to be screened within printed circuits.
- the device has a structure that is capable of testing the entire system at once by a multi-channel measurement.
- the device has a structure that comprises an integrated system capable of operating via an automatic channel routing, multi-channel connection and an USB interface.
- the device has a portable design.
- the device comprises an internal battery system and an internal charging system instead of an external power supply.
- Figure 1 An automatic multi-channel electronic test, measurement and analysis device is shown.
- the present invention is a mobile automatic test, measurement and analysis device that is capable of measuring multi-channel analog signals, suitable for wireless connection and having ultra-low power consumption.
- the invention analogously measures signals defined in a vehicle, compares them with reference values and then reports the results thereof.
- I t keeps the report document within a database so as to be used later optionally.
- I t measures all signals within a cabling of the vehicle at one scenario and reports the results thereof.
- I t determines faults and the points likely to have fault.
- the device is connected to a computer, a tablet, a smartphone or an external power supply through an USB interface.
- the system attains all power it needs to be able to operate preferably through the USB interface.
- Energy is introduced to an I nsulator Card, and subsequently a Main Processing Unit in the device. All power and reference voltages required to enable the device to operate are formed on the Main Processing Unit and then the device switches to a standby mode. Once the device is assured that the power signals required are generated, it waits for a communication through the USB and a Bluetooth interface in standby mode.
- interface software By means of interface software, the model, type and/or unit of connection of the vehicle desired to measured, is selected.
- the device requires a vehicle identification number and the other necessary information to be inputted before launching a test. I f desired, these data can be automatically obtained from the vehicle to be measured.
- the automatic or manual measurement scenario intended to be carried out is selected. And, then, depending on the measurement scenario selected, a user guidance panel is reflected on the screen. On this panel, it is shown graphically and in writing to the user which cable is set is to be connected to which point of connection bundle of the measurement device. Once the connection is ensured, the conditions required by the scenario (idle, ignition on, ignition off etc.) are reported. Measurement is launched by the user performing the requirements. During measurement, the user is directed once or more than once and the necessary conditions for every measurement group are ensured to be performed by the user. I n a manual test scenario, all steps of test of the vehicle or unit to be measured are listed and a measurement scenario is started over the test steps the user has selected.
- the user is routed for the necessary measurement needs and a measurement is carried out.
- a reporting module is activated and a report of the measurement is formed and presented in PDF format I f desired, it can be added to database and thereby measurement history of former records can be kept.
- the system basically consists of 3 electronic components. These are; an Analog Forwarding Unit (6) that enables the desired channels out of a cable harness to be routed to main processing unit, a Main Processing Unit (8) that is a unit managing the entire system, and an I nsulation Unit (9a) that provides an electrical insulation.
- I n a preferable embodiment of the invention, when the Analog Forwarding Units are more than one, it comprises an Analog Expansion Unit (7) that is a unit allowing the number of channels to be increased by connecting the Analog Forwarding Units (6) to one another.
- I t is the unit that performs the function of routing signals.
- I t is preferably defined as an electronic board.
- I t routes the channel in which a measurement is to be performed to measurement ports through the relays it comprises therein within the instructions from the main processing unit.
- I t gets the power and the control signals it needs to operate from an expansion interface or main processing unit Then, it transfers the power and control signal lines through its internal layout to the output expansion port of the board. I t momentarily repeats this process with updates obtained from the processing unit
- Said unit is able to be adapted to different types of vehicles and units and cable sets thereof through cabling input connectors it has on the board.
- the unit When switched to a new type of cable set, the unit is enabled to be adapted to the new system without a need for any change on the analog forwarding unit board.
- the Analog Forwarding Unit provides two functions in one. These are; the function of signal bridging and the function of channel routing. I n the technologies known already, connection is made manually to a system in which an analog measurement is desired to be carried out. Such connection is carried out through particular connections of connectors called sockets. There is a need for a signal carrier cable compatible with these sockets in order to carry out a measurement on these sockets.
- an “N”-channeled measurement device needs a bridging cable which is capable of routing the signals within the vehicle to the measurement device or a perforated analog bridging box to which the channels in the vehicle cable set can be connected to the measurement device by specialized connection ports.
- length of the cables in the connections that used to carry signals to the measurement device which is called as“stub”, can be up to a few meters. This causes deviations in the characteristics of the signal measured and also in inductance, capacitance and resistance values of the channel in which the signal is to be measured. Said deviations are known as stub effect.
- Such a cabling needs to be made for every one of the signals intended to be respectively or automatically measured.
- This approach may also result in deteriorations in signals by creating a stub effect on channels that are not enabled to be measured at this moment, in other words, it may have an effect on the signals waiting for their turns to be measured. Particularly, this deterioration/ effect is greater in high-frequency signals.
- I n the present invention architecture of signal bridging and architecture of channel routing are on the same board in the Analog Forwarding Unit. As it can route the signals to be measured within itself, its signal route extending to a measurement channel is quite short (at the level of cm’s) and this effect is only applicable on the signal to be measured.
- the stub effect is at a negligible level in the signals waiting for their measurement turns. I n other systems, the stub effect is started as of the moment when a physical socket connection is made, which is not possible to be blocked.
- the invention restrains the stub effect onto the signal measured only and has an enhanced quality and reliability of measurement due to its quite short stub length, which constitutes the main difference and advantage of the invention.
- the stub provided in the Analog Forwarding Unit (6) has a maximum length of 15 cm. I n addition, this unit is capable of operating with ultra-low power.
- the number of channels is limited in the current systems and this limitation is results from configuration, limitations for addressing of data bus or power limitations. I n our system, by means of a modular structure of channel expansion, an unlimited number of analog routing cards are connected to one another and thus the number of channels can be increased. The only limitation of the number of channels is the amount of energy they would consume.
- I t is used for transferring analog and digital lines between Analog Forwarding Units which can be preferably defined as electronic board.
- the unit basically acts as a bridge in transferring the signals.
- I ts main function is to form an electrical connection between the Analog Forwarding Units in an attempt to enhance channel capacity, to supply energy to the Analog Forwarding Units and to enable digital routing signals to be transferred to the Analog Forwarding Units.
- I t is the processing unit that manages the entire system .
- I t can be preferably defined as a electronic board.
- I t functions as a unit that performs the processes of measurement, control, communication, calibration, signal scaling, analog signal measurement, power distribution control, control of Analog Forwarding Units.
- I nternal units that may be contained in the Main Processing Unit are listed below.
- I t is the portion that supplies the energy and electrical values that the modules in the Main Processing Unit need. I t is capable of supplying energy and of blocking the energy supply to the related units at any time desired while being controlled by a microprocessor included in the board.
- I ts main function is to transmit the information of the signals to be routed for measurement to the Analog Forwarding Units and to launch a routing process. After the function of primary signal routing is completed, the signals selected are introduced to measurement inputs of the Main Processing Unit through the Analog Expansion Units.
- I nternal Signal Routing Unit The selected signals that are obtained from the Primary Signal Routing Unit are introduced to the input of this unit.
- a second internal routing process is started on the Main Processing Unit depending on the type of measurement or analysis to be performed. I n such an internal routing process, the signals; may be routed to one of the units including a Digital Communication Unit, off-case external output connectors or an Analog Scaling and Calibration Unit.
- I ts main function is to perform a calibration in an attempt to enhance accuracy of the measurement circuit before a measurement or any time desired, and to ensure that the analog signals obtained from the I nternal Signal Routing Unit and routed for an analog measurement are scaled in accordance with the one to be measured out of the components of voltage, resistance or current.
- I t measures the scaled signal obtained from the analog scaling and calibration unit.
- the microprocessor matches the data obtained from the analog scaling and calibration unit with the data obtained from the analog measurement unit and generates a final measurement result.
- Digital Communication Unit This unit is used for extracting data including identification number, malfunction codes and similar data of the vehicle by connecting to digital data buses of the vehicle to which the connection is made.
- I t supports eight communication protocols. These are; the protocols of SAE J1850 VPW, SAE J1850 PWM, I SO 9141 -2, I SO 14230 KWP2000, I SOI 5765-4/ SAE J2480, SAE J1587, SAE J1708 and SAE J1939.
- I t is an alternative used as a control interface of the measurement device. I f there is a great distance between the measurement device and the user performing the measurement, it provides the user with an extra mobility due to its wireless communication infrastructure. Furthermore, as the controlling unit has no physical connection with the measurement device, it enables the signal distortions resulting from the noises introduced through the communication interface to be eliminated. When the Bluetooth interface is activated, the device is enabled to be fed through the external power supplies.
- I t is responsible for ensuring security of the system itself .
- I t detects when the device is disassembled by technical stuff, vehicle manufacturer or out of warranty, and records such cases. I n addition to this, it also detects if the device has fallen down or exposed to any kind of shock, and records such cases.
- the security unit has its own battery system therein and continues operating even if it is not connected to another power unit. By means of the sensors (accelerometer etc.) that the unit comprises, it is capable of detecting not only if the device has fallen down, but also, at which angle it has fallen down and from which parts it has been damaged. Therefore, it acts in detecting the user faults and in increasing service quality.
- Protection Unit (9b) : 11 is the unit that protects the device against electrical problems likely to result from the battery when the device is operated with an internal battery. I n addition to that, it also therein contains the charger circuits that enable the internal battery to be charged.
- I t is preferably used for insulating the electrical connections between the measurement device and the device supplying power when a feeding through the USB is a case.
- This unit can be an insulation card as well as it can be placed on other cards in the system. Electrical power and data are thus separated and thereby both systems are prevented from affecting and damaging each other. Furthermore, the noise coming from the power supply is blocked, which eliminates any accuracy loss likely to occur in the measurement device due to such noise.
- the components including the Case (1 ) that allows movement and protection, the Handle (2) that allows handling, the Cabling Connectors (3) that are needed for receiving signals from the external devices and can be optionally alternated and adapted to different structures, the USB I nput Port (4) that is used for data bus communication and power connections, the Manual Signal Outputs (5) that enable the signals within the cable harness to be also externally measured, and the Lid (10) that is the cover of the case.
- I nline Measurement carries out an inline measurement by being connected to the cable set in series.
- the device has ultra-low energy consumption. Accordingly, in a preferable embodiment of the device, it can supply energy via USB connection. Thus, it has operation potential in all devices supported with USB connection. Other systems need to be connected to mains electricity or alternative external power supplies. • Multi-Channel Measurement, while other alternative devices can conduct a synchronous measurement, their number of measurement channels is limited. (Approximately in the range of 1 to 10) I n our invention, the number of channels can be extended and increased up to hundreds of channels.
- Reporting Support it can report, print out or digitally archive all measurements according to the user’s preference. Other measurement devices fail to provide such support or provide it partially.
- the measurement device allows a Bluetooth connection and thus the measurement device and the interface of a mobile phone or a computer can be placed at different locations. Particularly, when testing scenarios are performed, the user both needs to be at the wheel and to follow the instructions. Such a feature has not been provided in other current devices.
- Mobility other systems need to be connected to mains electricity or alternative external power supplies.
- Our invention due to its characteristic of ultra-low energy consumption, in a preferable embodiment, supplies energy from any device with USB connection such as a mobile phone, and thus provides mobility. Additionally, when a Bluetooth module is used, mobility is enhanced more.
- the device is connected in series to the cable set of the unit of the vehicle intended to be tested.
- a computer or mobile software of the device guides the user and explains the steps required to start a measurement process. The user proceeds to carry out the steps one by one and thus enables the measurement process to be performed.
- a report of the measurement is sent to a computer or a mobile device, and if desired, the user can print out or digitally save the report.
- • is a multi-channel elecktronic test, measurement and analysis device that has been particularly developed for military and commercial heavy tonnage land vehicles.
- • is capable of performing voltage, resistance, current, frequency, impedance, capacitance, inductance measurements.
- the invention can detect a fault and thus determine if such a fault results from the mechanism of the vehicle or sensors.
- the number of channels intended to be used for a measurement can be increased depending on user’s preference, which ensures flawless testing and measuring processes.
- the invention is simply adaptable to various systems.
- I t analyzes measurement results, determines the structures/units likely to have the potential of generating a fault later on, and reports them . As the measurements are carried out on integrated circuits, they provide the results with high accuracy and precision.
- the signals that are selected, when desired, through signal routing mechanisms provided on the device can be routed to the external measurement connectors provided on the device case. During a measurement process, as the cabling distances of the present invention are quite shorter compared to those of the current systems already known, results can be obtained with higher accuracy.
Landscapes
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Mechanical Engineering (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
- Mobile Radio Communication Systems (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TR201816490 | 2018-11-02 | ||
PCT/TR2019/050600 WO2020091705A2 (en) | 2018-11-02 | 2019-07-22 | Automatic multi-channel electronic test and measurement device |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3729576A2 true EP3729576A2 (en) | 2020-10-28 |
EP3729576A4 EP3729576A4 (en) | 2020-12-02 |
Family
ID=70462670
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19877746.8A Withdrawn EP3729576A4 (en) | 2018-11-02 | 2019-07-22 | Automatic multi-channel electronic test and measurement device |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP3729576A4 (en) |
WO (1) | WO2020091705A2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113110405A (en) * | 2021-05-27 | 2021-07-13 | 湖南汽车工程职业学院 | Multi-channel test system for chassis embedded control panel for automatic driving |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113093692B (en) * | 2021-03-16 | 2022-03-18 | 上海机电工程研究所 | Automatic testing method and system for ignition control system |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2641085B1 (en) * | 1988-12-22 | 1991-05-03 | Actia | |
US5177447A (en) * | 1990-11-06 | 1993-01-05 | Bear Automotive Service Equipment Company | Automated breakout box for automotive testing |
US6988053B2 (en) * | 2002-09-18 | 2006-01-17 | Spx Corporation | Combined off-board device and starter/charging/battery system tester |
US8818612B2 (en) * | 2011-09-14 | 2014-08-26 | Robert Bosch Gmbh | On-board diagnostic connector module and vehicle diagnostic system |
CN102591330B (en) * | 2012-03-09 | 2013-12-11 | 北京信息科技大学 | Fault detection system and method for electronic system of engineering vehicle |
CN205281867U (en) * | 2015-11-14 | 2016-06-01 | 湖南汽车工程职业学院 | Car fault diagnostic who contains on -vehicle network system |
-
2019
- 2019-07-22 EP EP19877746.8A patent/EP3729576A4/en not_active Withdrawn
- 2019-07-22 WO PCT/TR2019/050600 patent/WO2020091705A2/en unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113110405A (en) * | 2021-05-27 | 2021-07-13 | 湖南汽车工程职业学院 | Multi-channel test system for chassis embedded control panel for automatic driving |
Also Published As
Publication number | Publication date |
---|---|
WO2020091705A3 (en) | 2020-06-25 |
EP3729576A4 (en) | 2020-12-02 |
WO2020091705A2 (en) | 2020-05-07 |
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