Chapter 1 Preface This article refers to the address: http:// Chapter 2 Construction Content 2.2 Electronic Operation Certificate 2.3.4 Software Features Chapter 3 System Design Principles Composite Post Insulator,also known as Composite Polymer Post Insulators or silicone rubber insulators,which is made of one piece of porcelain but has fixing clamp arrangement are in both top and bottom end. As the replacement of porcelain insulators, Composite Long Rod Post Insulators have many advantages compared to porcelain insulators. Post Insulator are ideal for use in hvac, hvdc and in most hv application.
7.The installation size is the same as porcelain in type, they can exchange to use each other
MAIN DIMENSIONS AND STANDARD PARTICULARS
Type
33KV 10KN Horizonal
33KV-10KN Vertical
Rated Voltage(KV)
33
33
Rated mechanical strength load(KN)
10
10
Creepage distance(mm)
1080
1385
Structure height(mm)
550
708
Insulating distance(mm)
341
526
Lightning impulse withstand voltage(KV)
245
-
1 min wet power frequency withstand voltage(KV)
110
-
Standard
IEC61952
IEC61952
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1.1 Overview
At present, with the increasing number of urban taxis, the illegal operation of fake taxis is not uncommon. The operation management of taxis has highlighted many new problems. It is difficult to achieve effective management by single license plate to verify the authenticity of taxis. Therefore, Chengdu Lingtai Technology Co., Ltd., through years of strong development capabilities and practical system experience in the field of RFID, builds taxi electronics through the most advanced RFID electronic tag technology based on the handheld PDA system independently developed by our company. The operation permit system makes black taxis such as twin cars and deck cars nowhere to hide. At the same time, it also implements the handling of taxi vehicles, driver qualification information anti-counterfeiting, management of vehicle operation and violation information, registration and punishment of driver violation information, and vehicle annual review records. Through the operation of the system, good practical management effects and social benefits are achieved, so that the functional management department can be informatized and efficient, and at the same time protect the vital interests of the taxi.
1.2 System function
The management department issues the electronic label type electronic operation certificate through the taxi electronic operation license management software platform. The electronic operation certificate records the owner's name, ID card number, contact number, license plate number, unit, first contact, contact number, and brand model. , purchase time, engine number, frame number, affiliated company, issuing time, effective time and other management information, all data is encrypted by 128-bit AES encryption algorithm, overcoming the security risks of pure storage content encryption, completely counterfeit purpose.
After the electronic operation permit is issued, it is fixed at the right windshield of the taxi (inside the car), which is a certificate of the legality of the taxi operation. At the same time, the electronic operation certificate is designed with eye-catching logo and has an intuitive pseudo-counterfeiting function.
The handheld PDA is used for the audit of the electronic operation certificate, the information and the data are modified, and the illegal vehicle is alarmed.
Through the taxi electronic operation license management software platform for the management of taxi data, including the issuance, cancellation, re-issuance, inquiries, summary of handheld PDA inspection data, performance appraisal of auditors, and generation and printing of various reports .
It is possible to investigate and deal with illegal vehicles by means of mobile work. Law enforcement officers can sit in the law enforcement vehicle while driving. When encountering the running vehicle, it is only necessary to return the vehicle within 1 second by hand-held inspection function. Operating vehicle. The operating vehicle speed is valid within 200 km.
The method of fixed-point operation can be adopted: the detection base station can be set up in each main traffic lane (the monitoring base station is composed of a camera, a GPRS system, an electronic operation certificate reader/writer and a data processing system). When the vehicle passes through the main road, the camera will photograph the vehicle. After the physical license plate is processed by the monitoring base station image recognition system, the physical license plate number of the vehicle is obtained, and the electronic operation certificate reader and the reader obtain the electronic ticket number at the same time. If the comparison is not possible, the alarm processing can be immediately performed to prompt the interception.
2.1 System Topology Diagram 
2.2.1 Quality requirements
The frequency works in the green free frequency band 2.4 GHz–2.488 GHz, 83 channels communication distance: 100 meters direct sequence spread spectrum: DSSS, strong anti-interference ability, high confidentiality, communication speed 200 km/sec battery power, through unique wake-up function Can work continuously for more than 5 years
128-bit AES encryption algorithm to ensure data can not be copied Working temperature: -40 ° C -80 ° C
Service life: the number of reading and writing times ≥ 100000 times, the data retention time ≥ 10 years, the electronic label failure rate is less than three thousandths;
The consistency of the electronic label is over 98%, which can resist the general physical collision. After many low temperature and high temperature tests, the readability of the electronic label does not change.
2.2.2 Data Requirements
Electronic operation certificate data content:
Static data: owner's name, ID number, contact number, license plate number, unit, first contact, contact number, brand model, car purchase time, engine number, frame number, affiliated company, issuing time, management information, etc. Dynamic data: effective time, inspection time
2.2.3 Data Security Requirements
Electronic operation certificate security requirements: Data encryption technology using 128-bit AES security algorithm, decryption through data key, completely prevent information change and forgery.
2.3 Handheld Examiner
2.3.1 Hardware conditions
LTHP-01RF handheld PDA is a 2.4G electronic tag handheld reader that supports high-speed reading and writing of the company's 2.4G frequency segment active electronic tag, RFID PDA handheld smart recognizer, with high reliability, low power consumption The new generation of intelligent handheld data processing terminal equipment with simple operation and modular design provides large-capacity lithium polymer battery with long working time and provides the company's own ARM 32bit embedded software standard operating system platform (uL-OS). ) Ensure that the embedded software system runs more stably and reliably. Embedded hardware circuit industry design standards to ensure system and data security in all aspects.
The device adopts a unique RFID antenna design to avoid RFID card blind spots. The unique power consumption table is adopted in the uL-OS embedded operating system platform to more scientifically manage the handheld POS power consumption, and the high-definition, high-gray liquid crystal screen makes The whole POS is more atmospheric and intuitive to operate. The structure of the phone keys is designed to give the buttons a better feel and reliability. With the touch screen and the touch pen, the graphics operation is more intuitive, and the PDA-type handheld POS smart style is avoided, avoiding cumbersome Key operation and input.
2.3.2 PDA hardware configuration
2.3.3 Electrical performance 
Provide data management for electronic operation certificates, authorize changes or read data to provide USB2.0 data communication function, and can perform 128-bit security encryption algorithm for interactive data exchange with electronic operation certificate management platform through USB port and electronic operation certificate management platform. Encryption and decryption Key management of the encryption algorithm Black and white electronic operation certificate list management: If the electronic operation certificate is lost, the alarm will be processed immediately.
The flow record inspection data is carried out so that the data statistics of the inspection vehicles and the quantitative management of the work of the inspection staff can be carried out on the electronic operation permit management platform.
Instant access to simple data reports
2.4 Electronic Operation Certificate Desktop Reader
Under the electronic operation license software management platform, the data interaction with the electronic operation certificate is carried out, and the data is read, written, and changed using USB power supply and USB2.0 data communication, which realizes plug-and-play, convenient and simple.
2.5 Electronic Operation License Management Software Platform
2.5.1 Functional Overview
The electronic operation license management software platform component is in the SQL SERVER2000 database, adopting the modular development of B/S architecture. The whole system structure adopts multi-layer distributed structure, dual-system hot backup to ensure data security, and related data through Intel Internet. Information sharing, and set different levels of add, modify, browse, statistics and other permissions, so that the business operations of all levels of management agencies to real-time dynamic management.
Electronic operation certificate management software function:
The data initialization work of the electronic operation certificate is performed and registered in the database. The registration contents are ID card number, contact number, license plate number, unit, first contact person, contact number, brand model, purchase time, engine number, frame number, affiliated company, issuing time, effective time, etc. The electronic tag and encrypt the data.
Inquire and modify the basic information of the taxi, and form an information retrieval, form a report loss reporting electronic operation permit: loss of registration of the electronic operation certificate, cancellation of the electronic operation certificate: the cancellation of the invalid electronic operation certificate.
The data of the electronic operation permit can be aggregated to form monthly reports, annual reports, invalid electronic operation certificate statistics, electronic operation certificate annual review reports, auditor performance reports, etc., to provide powerful data analysis for the decision-making part.
Provide an operation log: View the login usage of each operator. All operations of each operator are documented.
Complete the key management of the electronic operation certificate to form a distributed key.
Provides a permission assignment function for each operator.
Backup and restore data features
High reliability: The architecture should be designed reasonably and a reliable backup strategy should be developed. The equipment has sufficient redundancy to reduce data loss caused by faults.
Flexibility and scalability: Depending on future growth and changes, the system can be scaled and upgraded smoothly, minimizing the need to adjust system architecture and existing equipment.
High security: Adopt internationally certified data encryption algorithm, effective authority management, and ensure data security and non-replicability to the utmost extent.
Economical: Under the premise of meeting functional requirements, try to do as little as possible, do more things, make full use of existing resources, and maximize system performance and price ratio.
Features
1.Excellent anti-pollution performance, suitable for high polluted area
2.Free of cleaning, economical maintenance and suitable for difficult maintenance area
3.No need of zero value check
4.Light weight, easy and economical to transportation and installation
5.Not brittle, and reduce the purchasing quantities for spare parts
6.Use in HVAC, HVDC and in most HV application.
