HOME   Cart(0)   Quotation   About-Us Policy PDFs Standard-List
www.ChineseStandard.net Database: 189760 (18 Oct 2025)

JJF 1578.3-2016 English PDF

US$229.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
JJF 1578.3-2016: Test Method of Calculating Mileage and Time for App-based Ride-hailing On-board Satellite Position Terminal(for trial implementation)
Status: Valid
Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
JJF 1578.3-2016English229 Add to Cart 3 days [Need to translate] Test Method of Calculating Mileage and Time for App-based Ride-hailing On-board Satellite Position Terminal(for trial implementation) Valid JJF 1578.3-2016

PDF similar to JJF 1578.3-2016


Standard similar to JJF 1578.3-2016

GB/T 3222.1   JJF 1234   JJF 1396   JJF 1578.2   JJF 1578   JJF 1578.1   

Basic data

Standard ID JJF 1578.3-2016 (JJF1578.3-2016)
Description (Translated English) Test Method of Calculating Mileage and Time for App-based Ride-hailing On-board Satellite Position Terminal(for trial implementation)
Sector / Industry Metrology & Measurement Industry Standard
Classification of Chinese Standard A57
Word Count Estimation 10,121
Date of Issue 2016-10-21
Date of Implementation 2016-11-01
Regulation (derived from) State Administration of Quality Supervision, Inspection and Quarantine Notice No.108 of 2016
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine

JJF 1578.3-2016: Test Method of Calculating Mileage and Time for App-based Ride-hailing On-board Satellite Position Terminal(for trial implementation)


---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Test Method of Calculating Mileage and Time for App-based Ride-hailing On-board Satellite Position Terminal (for trial implementation) National Metrological Technical Code of the People's Republic of China Network reservation taxi car satellite positioning terminal Metering time detection method (Trial) 2016-10-21 release 2016-11-01 implementation State Administration of Quality Supervision, Inspection and Quarantine issued Network reservation taxi car satellite positioning Terminal meter timing detection method (Trial) PositionTerminal (fortrialimplementation) Unit. National Time Frequency Measurement Technical Committee The main drafting unit. Beijing Institute of Metrology and Testing (National Satellite Navigation and Timing Industry Measurement and Testing Center) Beijing University of Aeronautics and Astronautics Participated in the drafting unit. Zhongguancun Space Information Industry Technology Alliance Beijing Hezhong think Zhuang Technology Co., Ltd. Beijing Hualitong Technology Co., Ltd This specification entrusts the National Time Frequency Measurement Technical Committee to explain The main drafters of this specification. Liang Wei (Beijing Institute of Metrology and Measurement Science) (National Satellite Navigation and Timing Industry Measurement and Testing Center) Zhong Chongxia (Beijing Institute of Metrology and Measurement Science) (National Satellite Navigation and Timing Industry Measurement and Testing Center) Zheng Ying (Beijing Institute of Metrology and Measurement Science) Qin Honglei (Beijing University of Aeronautics and Astronautics) Participate in the drafters. Ma Guanghao (Zhongguancun Space Information Industry Technology Alliance) Zhang junfeng (Beijing Hezhong think strong Technology Co., Ltd.) Qian Daoqing (Beijing Hualitong Technology Co., Ltd.)

table of Contents

Introduction (II) 1 Scope (1) 2 References (1) 3 Terminology (1) 3.1 network reservation taxi car satellite positioning terminal (1) 4 Overview (1) 5 Metrological characteristics (2) 5.1 positioning bias and precision (2) 5.2 Accuracy of measurement (2) 5.3 Timing error (2) 6 General technical requirements (2) 6.1 Display function (2) 6.2 Output function (2) 6.3 Power protection function (2) 7 Test conditions (2) 7.1 Environmental conditions (2) 7.2 Main measuring instruments (3) 8 Test items and test methods (3) 8.1 Test items (3) 8.2 Detection method (3)

Introduction

This specification is intended to provide a method of testing the timing of the network reservation of the car's satellite-based satellite positioning terminal. This specification is prepared in accordance with the requirements of JJF 1071-2010 "Rules for the Preparation of National Metrological Calibration Standards". This specification is the first release. Network reservation taxi car satellite positioning terminal Metering time detection method (Trial)

1 Scope

This specification applies to the network booking taxi business service platform company used by the network booking taxi car satellite Locate the terminal to measure the timing of the meter.

2 reference file

This specification refers to the following documents. JJF 1403-2013 Global Navigation Satellite System (GNSS) Receiver (Time Measurement) Calibration Specification GB/T 19056-2012 Car Drive Recorder Technical Requirements for Vehicle Terminals for Satellite Positioning Systems for Road Transport Vehicles JT/T 794-2011 For dated references, only the dated edition applies to this specification; references that are not dated , The latest version (including all modifications) applies to this specification.

3 terminology

3.1 network reservation taxi car satellite positioning terminal on-boardsatelitepositionterminalofapp- basedride-hailing Network booking a taxi (hereinafter referred to as the network car) installed on the use of satellite navigation system to calculate the vehicle Latitude and longitude, mileage and time and other information, and display, storage, through the interface to achieve data output of electronic devices.

4 Overview

Network booking taxi Car satellite positioning terminal (hereinafter referred to as vehicle terminal) mainly by the host, the display model Block, auxiliary parts and other components. Hosts typically include GNSS receive modules, microprocessors, data memory, and data traffic Out of the interface, control circuits, etc., auxiliary parts generally include the antenna and other parts of the vehicle connection line. Car terminal for Network booking taxi taxi and timing, the basic structure and working principle shown in Figure 1. Figure 1 vehicle terminal basic structure and working principle diagram

5 measurement characteristics

5.1 positioning bias and precision ≤ 15m; ≤ 15m, 1σ. 5.2 Measurement error -4% to 1%. 5.3 Timing error ≤ 1.5s. General technical requirements 6.1 Display function The vehicle terminal should be able to display Beijing time in hours, minutes, seconds or hh/mm/ss, and as a record, Output, display, data communication and other functions of the marked time. 6.2 Output function The vehicle terminal should be able to record the mileage and time, and upload the data service platform company. Settlement mileage The minimum resolution should be ≤ 0.1km, the minimum resolution of the settlement time should be ≤ 1min. Car terminal from the boot to the output of effective positioning information should be less than 30s time. In the loss of all navigation signals, The time from re-receiving the navigation signal to output valid positioning information should be less than 10 s. 6.3 Power protection function Car terminal should have power protection, when the vehicle terminal power, should automatically enter the protection state, before power storage Of the information can be kept at least 15d.

7 detection conditions

7.1 Environmental conditions 7.1.1 Ambient temperature. (20 ± 10) ° C. 7.1.2 Environmental relative humidity. ≤ 80%. 7.2 Main measuring instruments 7.2.1 Satellite navigation signal simulator a) Output frequency. support GNSS system used in vehicle terminals, at least need to include GPSL1 and BDS B1 frequency; b) Signal power. Output range (-150 ~ -110) dBm; Maximum allowable error. ± 0.5dB; c) Pseudo-precision. ≤ 0.01m. 7.2.2 Portable satellite navigation signal simulator a) Output frequency. support GNSS system used in vehicle terminals, at least need to include GPSL1 and BDS B1 frequency; b) Signal power. Output range (-150 ~ -110) dBm; c) pseudorange accuracy. ≤ 0.01m; d) with DC power supply mode. 7.2.3 Live Record Playback System Recording signal quantization bit number ≥ 16, recording bandwidth ≥ 10MHz. 7.2.4 Combination Positioning Positioning System In the GNSS lock, positioning deviation. ≤ 0.05m, the measurement error. ≤ 0.03%; GNSS loss of lock within 60s, positioning bias. ≤ 1m, the measurement error. ≤ 0.1%. 7.2.5 Standard clock Maximum allowable error at current time. ± 0.5s.

8 Test items and test methods

8.1 Test items The test items are shown in Table 1. Table 1 List of test items No. Test item name

1 function check

2 positioning bias and precision

3 meter error

4 timing error

8.2 Detection method 8.2.1 Functional check Check the vehicle terminal with visual inspection, the results should meet the requirements of 6. 8.2.2 positioning bias and precision Satellite navigation signal simulator (hereinafter referred to as the simulator) set positioning bias and positioning bias precision test scene (Visible satellite not less than 6, the signal power -120dBm or by the manufacturer interface level indicators, the speed of 0 ~ 120km/h range), the instrument connection shown in Figure 2. Figure 2 instrument connection diagram Start simulator positioning deviation and positioning deviation precision test scene, the vehicle terminal output the first effective positioning value , Wait 3min, continuous operation for 15min, record the vehicle terminal positioning data values (sampling interval by car terminal operation For manual, no sampling interval of 1s). Set the i-th position simulator to simulate the standard position value as (x0i, y0i, (xi, yi, zi) (i = 1, 2, and n), and the position information recorded by the vehicle terminal Calculate the i-th positioning point deviation, δxi = xi-x0i, δyi = yi-y0i, δzi = zi-z0i (1) According to equation (2) to calculate the n points of the average deviation δx, δy, δz, δx = i = 1 δxi, δy = i = 1 δyi, δz = i = 1 δzi (2) According to equation (3) to calculate the vehicle terminal positioning deviation δp, δp = δx2 δy2 δz2 (3) According to equation (4) to calculate the deviation of the experimental standard deviation sx, sy, sz, sx = n-1Σ i = 1 (δxi-δx) 2æ , sy = n-1Σ i = 1 (δyi-δy) 2æ sz = n-1Σ i = 1 (δzi-δz) 2æ (4) According to equation (5) to calculate the vehicle terminal positioning deviation precision σp. σp = s2x s2y s2z (5) Where. δxi, δyi, δzi --- x, y, z coordinate positioning deviation of the i-th positioning point of the vehicle terminal; δx, δy, δz --- mean value of positioning deviation of vehicle terminal; sx, sy, sz - the standard deviation of the positioning point deviation; σp --- positioning deviation precision. 8.2.3 Measurement error 8.2.3.1 simulator method Run simulator or portable simulator error measurement test scene (visible satellite no less than 6, signal power -120dBm or according to the manufacturer interface level indicators, the speed of 0 ~ 120km/h), according to formula (6) calculation error. ΔR = R-R0 (6) Where. ΔR --- stroke error, km; R --- vehicle terminal measurement mileage, km; R0 --- standard mileage, km. 8.2.3.2 Road test method In the network car to install the real record playback system and the combination of positioning attitude positioning system, driving in the actual road, driving Speed in the (0 ~ 120) km/h, real record playback system for continuous acquisition of satellite navigation signal of not less than 15min, At the same time combined with the positioning of the positioning system to measure the mileage as the standard mileage R0. Record the scene recorded by the live recording system Playback to the vehicle terminal, vehicle terminal measurement mileage is R, according to formula (6) calculate the measurement error. 8.2.4 Timing error With the standard clock and the vehicle terminal clock on the time and record, according to formula (7) calculated the current vehicle terminal Moment error. Δt = t-t0 (7) Where. Δt --- current moment error, s; t --- vehicle terminal time indication, s; t0 --- the value of the standard clock, s. The time error Δt1 and Δt2 of the starting point and the end point are respectively obtained by the above-mentioned method, and the timing error is calculated according to the formula (8) Δτ = Δt2 - Δt1 (8) Where. Δτ --- timing error, s; Δt2 --- the end of the moment error, s; Δt1 --- the moment of the starting point error, s.

Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of JJF 1578.3-2016_English be delivered?

Answer: Upon your order, we will start to translate JJF 1578.3-2016_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of JJF 1578.3-2016_English with my colleagues?

Answer: Yes. The purchased PDF of JJF 1578.3-2016_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to [email protected]. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.