海康威视HIKVISION ISAPI 2.0 IPMD Service 手册

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"HIKVISION ISAPI_2.0-IPMD Service.pdf 是海康威视的一份关于IP Surveillance API用户指南的手册，版本为2.2修订版，发布于2014年7月。该手册详细介绍了如何使用海康威视的ISAPI接口进行设备管理和监控操作。" 这篇手册是海康威视针对其IP Surveillance API的一个详细文档，旨在帮助开发者或系统集成商更好地理解和使用这个接口。ISAPI（Internet Protocol Surveillance Application Programming Interface）是海康威视提供的一种基于HTTP协议的接口，用于实现网络视频监控设备的远程控制和管理。从修订历史来看，手册经历了多次更新和完善。例如，版本2.0 Revision 1是初始版本，由HongMeng在2012年4月发布；版本2.0 Revision 2合并了qi的文档，进一步优化了内容；版本2.0 Revision 3添加了债券和假日服务功能；版本2.0 Revision 4将前端设备和后端设备的管理整合在一起，提高了系统的整体协调性。在版本2.0 Revision 5中，新增了资源/ISAPI/System/Hardware/ABF，这可能是关于硬件异常检测的功能。同时，服务/ISAPI/Event/capabilities中添加了<isSupportSpareException>和<isSupportPoePowerException>两个可选标签，分别用于支持备用异常和POE电源异常的检测。此外，服务/ISAPI/Smart/FieldDetection/ID下新增了<intelliBackSearch>可选标签，这可能涉及到智能回溯搜索功能，增强了智能分析能力。在版本2.0 Revision 6中，引入了新的<VideoInputList>标签，位于服务/ISAPI/System/Network/SIP/<ID>/SIPInfo下，这可能是为了处理SIP（Session Initiation Protocol）的视频输入列表，增强了网络通信功能。最后，在版本2.0 Revision 7中，增加了email、ip、ftp、ntptest server的相关测试，这表明ISAPI接口已经能够支持这些常见的网络通信和数据传输方式，提升了设备的兼容性和稳定性。 HIKVISION ISAPI_2.0-IPMD Service.pdf涵盖了海康威视IP Surveillance API的多个关键特性，包括设备管理、事件处理、智能分析、网络通信等，是开发者和系统管理员进行海康威视设备集成和监控系统开发的重要参考资料。通过这个接口，用户可以实现对海康威视监控设备的远程配置、录像、报警、智能分析等功能，大大提升了监控系统的自动化和智能化水平。

URIs, request and response headers, Internet media types, HTTP request and response

codes etc. In addition, HTTP also has some features particularly suitable for REST

architecture. So HTTP is used as external Application Layer protocol in this specification.

In the architecture, clients are physical security and video management systems; servers

are IP media devices.

This specification also contains full XML schema for the introduced resources.

4.1 REST and HTTP Methods

The following table shows how HTTP verbs are typically used to implement a web service

based on REST architecture.

Table 1

Resource

GET

PUT

POST

DELETE

Collection URI, such as

http://webServer/resour

ces

List the

members of

collection,

complete with

their member

URIs for

further

navigation.

Meaning defined

as “replace the

entire collection

with another

collection”.

Create a new

entry in the

collection where

the ID is assigned

automatically by

the collection. The

ID created is

usually included

as part of the data

returned by this

operation.

Meaning

defined

as “delete

the entire

collection”

Member URI, such as

http://webServer/resour

ces/7416

Retrieve a

representation

of the

addressed

member of the

collection

expressed in

an appropriate

MIME type.

Update the

addressed member

of the collection or

create it with the

specified ID.

Treat the

addressed

member as a

collection in its

own right and

create a new

subordinate of it.

Delete

the

addresse

d member

of the

collection.

4.2 XML

A device must support the syntax defined by W3C XML 1.0 specification [2] and UTF-8

character set [3]. All XML files must adopt UTF-8 encoding according to RFC3629.

Additionally, all resources share a common XML schema as defined in Annex.

Any resources can specify separate input and output XML Documents. If a specific data

Services

Description

Reference

Streaming

Configure and control the streaming media

content.

8.9

Motion Detection

Configure and control the motion detection of the

device

8.10

Event

Provide event notification functions.

8.11

PTZ

Control the device pan tilt and zoom.

8.12

4.4 Protocol URL

The URL scheme is used to locate device resources via a specific protocol in the network.

This section defines the syntax and semantics for http(s) URLs.

<protocol>://<host>[:port][abs_path [?query]]

protocol: URL scheme for the particular request. The http and https protocols are allowed

in this specification.

host: The host field refer to the hostname, IP address, or the FQDN of an IP device.

port: The port field refer to the port number of that host on which the identified resource is

located at the IP device listening for TCP connections. If the port is empty or not given, the

default port is assumed. For HTTP, the default port 80. For HTTPS, the default port 443.

abs_path: The Request-URI [1] for the resources is abs_path [4]. The abs_path in this

specification is most often of the form “[/Services][/General Resources][/Standard

Resources]”, which is suitable for resources to update or restore device configurations.

“ID” which appears in the abs_path identifies one resource of a list resource in this

specification.

query: The query field is a string of information to be interpreted by the resource. It can

include some resource-related parameters. It must be listed in name-value pair syntax

(p1=v1&p2=v2&…&pn=vn). Each resource can define a set of parameters. Defining input

data which is specific to the resource will be prior than query usage.

4.5 Messages

HTTP messages are used for communication between physical security and video

management systems and IP media devices in this specification. In order to configure and

control the device, some provisions are specified for these HTTP message.

4.5.1 Connection Header Field

Devices that implement HTTP/1.1 should support persistent connections in order to meet

video management systems or client applications’ requirements that issue multiple

HTTP(s) transactions. HTTP/1.1 is implemented and utilized according to RFC 2616 in

the IP devices. For a video management system or client application that uses persistent

connection for multiple transactions, it is required to implement “Connection: Keep-Alive”

HTTP header field, while also adopt the “Connection: close” HTTP header field for the last

transaction of the persistent connection. This process will assume that the application can

identify the last request in a sequence of multiple requests.

4.5.2 Authorization and WWW-Authenticate

Header Fields

When a video management system or client application sends any request to the device,

it must be authenticated by means of Basic Access [5] according to RFC 2617, and thus

all the devices are required to support Basic Access. Authorization header field is sent

along with each request, and if a user is authenticated, the request will follow the normal

execution flow. If client HTTP request is with no authentication credentials, unauthorized

HTTP response (401) will be returned with WWW-Authenticate header field.

4.5.3 Entity Body

The Content-Type entity-header field indicates the media type of the entity body. The

Content-Type may be designated as “application/xml; charset=’UTF-8’”,

“application/octet-stream”, etc.

For configuration information, the Content-Type is usually “application/xml;

charset=’UTF-8’”. For example,

HTTP Request Message:

GET /ISAPI/System/status HTTP/1.1

…

HTTP Response Message:

HTTP/1.1 200 OK

…

Content-Type: application/xml; charset=”UTF-8”

…

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