CN111460654A - Vehicle-mounted navigation module simulation drive test system and method - Google Patents

Vehicle-mounted navigation module simulation drive test system and method Download PDF

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Publication number
CN111460654A
CN111460654A CN202010243838.9A CN202010243838A CN111460654A CN 111460654 A CN111460654 A CN 111460654A CN 202010243838 A CN202010243838 A CN 202010243838A CN 111460654 A CN111460654 A CN 111460654A
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China
Prior art keywords
gps
signal
vehicle
test system
drive test
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Pending
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CN202010243838.9A
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Chinese (zh)
Inventor
孙浩军
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Shanghai Yunmu Technology Co ltd
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Shanghai Yunmu Technology Co ltd
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Priority to CN202010243838.9A priority Critical patent/CN111460654A/en
Publication of CN111460654A publication Critical patent/CN111460654A/en
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/13—Receivers
    • G01S19/14—Receivers specially adapted for specific applications
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/13—Receivers
    • G01S19/20—Integrity monitoring, fault detection or fault isolation of space segment
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/38—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
    • G01S19/39—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/42—Determining position
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/38—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
    • G01S19/39—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/52—Determining velocity

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  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Security & Cryptography (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)
  • Navigation (AREA)
  • Traffic Control Systems (AREA)

Abstract

The invention discloses a vehicle-mounted navigation module simulation drive test system which comprises a signal generating device for simulating and generating a GPS signal, wherein the signal generating device sends the simulated GPS signal and is received by a GPS antenna of navigation equipment. The invention has the advantages that: the GPS signal is generated in an analog simulation mode and received by the navigation equipment, so that the navigation software equipment can be tested without road test, the method is simple, convenient, low in cost and high in efficiency, the start is saved, and the navigation development period is shortened.

Description

Vehicle-mounted navigation module simulation drive test system and method
Technical Field
The invention relates to the field of vehicle testing, in particular to a vehicle navigation module simulation drive test system and a vehicle navigation module simulation drive test method.
Background
The vehicle-mounted navigation module is used as a necessary device of a vehicle, and navigation is carried out by acquiring a GPS signal, so that driving is assisted. The vehicle-mounted navigation module comprises hardware equipment and navigation software which correspondingly runs, in the conventional navigation test process, in order to acquire an actual GPS signal to test tests such as traffic light reminding, route error correction, overspeed reminding, route re-planning and the like so as to confirm the safety, stability, reliability and the like of the navigation module, generally, the vehicle is actually driven to a test side on the road, and then whether the navigation software gives various reminders or not is observed according to the road test.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a vehicle-mounted navigation module simulation drive test system and method, which are used for testing a navigation software module of a vehicle in a simulation mode, are simple and convenient and do not need drive test.
In order to achieve the purpose, the invention adopts the technical scheme that: a vehicle-mounted navigation module simulation drive test system comprises a signal generating device for simulating and generating a GPS signal, wherein the signal generating device sends the simulated GPS signal and is received by a GPS antenna of navigation equipment.
The signal generating device comprises a signal generating unit, a signal transmitter and a signal antenna, wherein the signal generating unit is used for generating a store-and-forward GPS signal, and the signal transmitter is used for transmitting the GPS signal of the signal generating unit through the signal antenna and receiving the GPS signal by a GPS receiving antenna of the navigation equipment.
The signal generating device sends GPS coordinate positioning signals to the vehicle-mounted navigation equipment at a certain frequency,
the signal generating device is used for presetting a plurality of coordinates corresponding to the route for testing the navigation equipment.
The signal generating unit is connected with the speed adjusting key and used for controlling the signal generating unit to send and output coordinate information corresponding to the speed according to the speed adjusting key.
The signal generating unit is connected with the display screen and used for displaying traffic light information on the test route in real time.
The test system also comprises a test environment for testing, wherein the test environment is a shielding environment for frequently closing real GPS signals.
The shielding environment is an electromagnetic shielding chamber.
A simulation drive test method of a vehicle navigation module simulation drive test system comprises the following steps:
step 1: placing the simulation drive test system in a test environment of a shielding environment;
step 2: selecting a test route and generating a corresponding GPS analog position signal;
and step 3: sending a GPS analog positioning signal according to the set analog speed;
and 4, step 4: and the tester observes the navigation working state of the navigation equipment after receiving the GPS.
The invention has the advantages that: the GPS signal is generated in an analog simulation mode and received by the navigation equipment, so that the navigation software equipment can be tested without road test, the method is simple, convenient, low in cost and high in efficiency, the start is saved, and the navigation development period is shortened.
Drawings
The contents of the expressions in the various figures of the present specification and the labels in the figures are briefly described as follows:
FIG. 1 is a schematic diagram of the system architecture of the present invention.
Detailed Description
The following description of preferred embodiments of the invention will be made in further detail with reference to the accompanying drawings.
The method and the device send the needed coordinates of a certain route to the navigation software at a certain speed to observe whether the navigation software can be tested to perform corresponding broadcasting or not, so that the navigation equipment is tested. It is equivalent for the navigation software to travel on the actual road. The driving can be simulated to go anywhere in the office, the expenditure is saved, and the navigation test period is prolonged. The specific scheme is as follows:
a vehicle-mounted navigation module simulation drive test system comprises a signal generating device for simulating and generating GPS signals, wherein the signal generating device sends the simulated GPS signals and is received by a GPS antenna of navigation equipment. Different simulated GPS signals can enable navigation software to generate different reactions, for example, speed can be measured by the change of front and back positioning distances under the condition that the frequency of GPS signal transmission is fixed, so that speed alarm is given.
The signal generating device mainly performs transmission of an analog GPS, and the main object is to transmit the generated analog GPS signal to the navigation apparatus. The device comprises a signal generating unit, a signal transmitter, a signal antenna and a speed adjusting key. The input end of the signal generating unit is connected with the speed adjusting key, the output end of the signal generating unit is connected with the signal transmitter, and the signal transmitter transmits the simulated GPS signal through the signal antenna and is received by the navigation equipment.
The signal generating unit is used for generating a store-and-forward GPS signal, and the signal transmitter is used for transmitting the GPS signal of the signal generating unit through the signal antenna and receiving the GPS signal by the GPS receiving antenna of the navigation equipment. The GPS is actually coordinate, latitude and longitude information. In order to realize the simulation drive test, a test route and longitude and latitude signals corresponding to the test route are preset in a signal generating unit, then the longitude and latitude are read and transmitted during operation, so that the simulation GPS signal can be generated, when the signal is transmitted, a GPS coordinate positioning signal is transmitted to a vehicle-mounted navigation device at a certain frequency, for example, a position signal is transmitted once every second, in order to simulate the speed of a vehicle, the position of the GPS signal transmitted every time is adjusted, and the coordinate information corresponding to the speed is transmitted and output through a speed adjusting key. If the speed needs to be increased, the interval between sending GPS coordinate positions becomes larger after key adjustment, that is, the coordinates of the preset route are read and sent, and the larger coordinate interval is read.
As shown in fig. 1, a computer is used to simulate the occurrence of GPS signals, and longitude and latitude information of a route is preset, and in fact, if the route of the longitude and latitude information takes the abscissa as longitude and the ordinate as latitude, the route belongs to a continuous curve, and after the longitude and latitude information of the curve is read in a computer programming manner, the longitude and latitude information is transmitted through a GPS signal transmitter and a signal antenna. The speed adjusting button can enable a mouse and other peripherals to be used, after the speed is selected, the distance difference between the front latitude and the rear latitude when the latitude and longitude information is read each time can be determined, for example, the GPS position information which is to be sent next time is calculated according to the speed, the previous latitude and longitude and the frequency of sending GPS signals, so that the position coordinates of different interval distances are sent at different speeds, the speed can be calculated according to the distance in navigation software, and the speed reminding test is convenient to carry out. In the preset route coordinate information, the position of the traffic light and the position of the speed measuring point are calibrated, the distance between the traffic light and the position of the speed measuring point and the GPS coordinate sent at this time is calculated in real time through the computer, and the distance is displayed through a display screen of the computer, so that whether the navigation equipment timely reminds the traffic light and the speed measuring signals or not in the simulation test can be conveniently checked.
Because the simulation test is provided, the vehicle or the navigation equipment does not actually move, so that two GPS signals are received, one is the simulation GPS signal sent by the test system, and the other is a real GPS signal, so that interference is generated. Therefore, the test system needs to be arranged in a test environment, and the test environment is a shielding environment for frequency-closing real GPS signals. The shielding environment is an electromagnetic shielding room, that is, a warehouse, a test room and the like arranged on an electromagnetic shielding site are used for accommodating a test system, and a steel plate house and the like with electromagnetic shielding are generally adopted to shield the true GPS.
The application relates to a simulation drive test method of a vehicle-mounted navigation module simulation drive test system, which comprises the following steps:
step 1: placing the simulation drive test system in a test environment of a shielding environment; if the navigation equipment is on the vehicle, the whole vehicle can be put into a shielding warehouse together;
step 2: selecting a test route and generating a corresponding GPS analog position signal;
and step 3: sending a GPS analog positioning signal according to the set analog speed; this allows the generation of the required GPS signals, characteristic of a certain speed, to be received by the navigation device,
and 4, step 4: and the tester observes the navigation working state of the navigation equipment after receiving the GPS. After receiving the signal, the navigation equipment can mistakenly assume that the signal is a true GPS, then can make a response to give navigation, and then a tester tests, observes and records the navigation equipment according to the display of a computer terminal and the navigation voice given by the navigation software, so that the navigation software can be tested without road test.
It is clear that the specific implementation of the invention is not restricted to the above-described embodiments, but that various insubstantial modifications of the inventive process concept and technical solutions are within the scope of protection of the invention.

Claims (9)

1. The utility model provides a vehicle navigation module simulation drive test system which characterized in that: comprising signal generating means for analog generation of GPS signals, said signal generating means transmitting analog GPS signals and being received by a GPS antenna of the navigation device.
2. The vehicle-mounted navigation module simulation drive test system of claim 1, wherein: the signal generating device comprises a signal generating unit, a signal transmitter and a signal antenna, wherein the signal generating unit is used for generating a store-and-forward GPS signal, and the signal transmitter is used for transmitting the GPS signal of the signal generating unit through the signal antenna and receiving the GPS signal by a GPS receiving antenna of the navigation equipment.
3. The vehicle-mounted navigation module simulation drive test system of claim 1 or 2, wherein: the signal generating device sends GPS coordinate positioning signals to the vehicle-mounted navigation equipment at a certain frequency.
4. The vehicle-mounted navigation module simulation drive test system of claim 3, wherein: the signal generating device is used for presetting a plurality of coordinates corresponding to the route for testing the navigation equipment.
5. The vehicle-mounted navigation module simulation drive test system according to any one of claims 1 to 4, characterized in that: the signal generating unit is connected with the speed adjusting key and used for controlling the signal generating unit to send and output coordinate information corresponding to the speed according to the speed adjusting key.
6. The vehicle-mounted navigation module simulation drive test system of claim 5, wherein: the signal generating unit is connected with the display screen and used for displaying traffic light information on the test route in real time.
7. The vehicle-mounted navigation module simulation drive test system according to any one of claims 1 to 6, characterized in that: the test system also comprises a test environment for testing, wherein the test environment is a shielding environment for frequently closing real GPS signals.
8. The vehicle-mounted navigation module simulation drive test system of claim 7, wherein: the shielding environment is an electromagnetic shielding chamber.
9. The method for the simulation drive test of the vehicle-mounted navigation module simulation drive test system according to any one of claims 1 to 8, characterized in that: the method comprises the following steps:
step 1: placing the simulation drive test system in a test environment of a shielding environment;
step 2: selecting a test route and generating a corresponding GPS analog position signal;
and step 3: sending a GPS analog positioning signal according to the set analog speed;
and 4, step 4: and the tester observes the navigation working state of the navigation equipment after receiving the GPS.
CN202010243838.9A 2020-03-31 2020-03-31 Vehicle-mounted navigation module simulation drive test system and method Pending CN111460654A (en)

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CN202010243838.9A CN111460654A (en) 2020-03-31 2020-03-31 Vehicle-mounted navigation module simulation drive test system and method

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104215978A (en) * 2014-09-24 2014-12-17 重庆长安汽车股份有限公司 Device and method for testing signal receiving performance of vehicle-mounted Beidou compatible GPS navigation antenna
TW201725566A (en) * 2016-01-14 2017-07-16 南臺科技大學 System for reminding regional traffic conditions by use with global positioning system in electronic device
CN107356260A (en) * 2017-05-18 2017-11-17 诺优信息技术（上海）有限公司 Navigation system and method applied to automatic road measuring
CN109596145A (en) * 2018-12-19 2019-04-09 安徽江淮汽车集团股份有限公司 A kind of dynamic testing method and system of vehicle mounted guidance
CN110471093A (en) * 2019-08-22 2019-11-19 深圳市元征科技股份有限公司 A kind of satellite navigation test macro, method and apparatus
CN110555256A (en) * 2019-08-28 2019-12-10 浙江鸿泉车联网有限公司 GPS route simulation data generation method and device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104215978A (en) * 2014-09-24 2014-12-17 重庆长安汽车股份有限公司 Device and method for testing signal receiving performance of vehicle-mounted Beidou compatible GPS navigation antenna
TW201725566A (en) * 2016-01-14 2017-07-16 南臺科技大學 System for reminding regional traffic conditions by use with global positioning system in electronic device
CN107356260A (en) * 2017-05-18 2017-11-17 诺优信息技术（上海）有限公司 Navigation system and method applied to automatic road measuring
CN109596145A (en) * 2018-12-19 2019-04-09 安徽江淮汽车集团股份有限公司 A kind of dynamic testing method and system of vehicle mounted guidance
CN110471093A (en) * 2019-08-22 2019-11-19 深圳市元征科技股份有限公司 A kind of satellite navigation test macro, method and apparatus
CN110555256A (en) * 2019-08-28 2019-12-10 浙江鸿泉车联网有限公司 GPS route simulation data generation method and device

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