CN1567816A - A remote power feeding equipment having remote control function - Google Patents
A remote power feeding equipment having remote control function Download PDFInfo
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- CN1567816A CN1567816A CN 03128211 CN03128211A CN1567816A CN 1567816 A CN1567816 A CN 1567816A CN 03128211 CN03128211 CN 03128211 CN 03128211 A CN03128211 A CN 03128211A CN 1567816 A CN1567816 A CN 1567816A
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Abstract
The invention provides a long-distance control remote power supply device, including interface circuit, Ethernet exchange chip, CPU, power supply control chip and DC power supply, where the interface circuit includes input interface and output interface, which are connected with the Ethernet exchange chip providing long-distance monitoring function, the Ethernet exchange chip sends the management signal separated from the output interface to the CPU, the CPU monitors the power supply control chip to monitor and control the power supply situation of each path and load the DC power supply to the non-screened twisted-pair connected to the edge-layer exchanger, and the CPU also communicates with the network manager, processes commands and makes real-time alarm for device failure.
Description
Technical field
The present invention relates to a kind of remote power supply device with remote control function, the terminal equipment (DTE) that is used for the reliability and the convenience of power supply being had higher requirements in the Local Area Network field carries out the far-end power supply.
Background technology
In legacy network, data are separated with power supply.In the past in order to provide power to equipment, just equipment must be placed on as far as possible supply socket near.Remote power feeding is a kind of tranmission techniques of new power supply, and it is combined in transmission in the unshielded twisted pair (UTP) with data and power supply.By the remote power feeding technology, can alleviate restriction greatly to the terminal equipment riding position, can effectively satisfy the requirement of equipment, and can reduce demand, reduce the installation work of power line high-quality power module and uninterrupted power supply (ups) Unity equipment to power supply security of supply and stability.If but remote power feeding equipment does not have the function of Long-distance Control, not only can't understand the working condition of equipment, and when the problem of generation, need arrive the scene and handle.
Summary of the invention
The purpose of the invention aims to provide a kind of being used in the Local Area Network field and carries out remote power feeding, and can carry out the device of Long-distance Control to electric power thus supplied to terminal equipments (DTE) such as ether network switch.It can be used for to the access point in the WLAN (wireless local area network), and nothing is reliable or make things convenient for the corridor Ethernet switch of power supply that stable power is provided, and electric power thus supplied is carried out long-range monitoring, and the release personnel carry out execute-in-place maintenance and management to power-supply device.
Technical scheme of the present invention is as follows:
Between convergence-level switch and marginal layer switch (terminal equipment just), increase this device; this device can be superimposed upon the 220V power supply on the unshielded twisted pair through behind the power conversion; be sent to terminal equipment; and by adopting power supply control chip; realization is to the monitoring function of power source conversion; as short-circuit protection, the opening and closing of power supply passage realize the function of Long-distance Control by adopting central processing unit and Ethernet switching chip.The present invention has the function that power supply extracts at terminal equipment, power supply can be extracted from unshielded twisted pair, and the power supply that therefore terminal equipment is not discussed extracts problem.
The remote power supply device of band remote control function of the present invention comprises interface circuit, Ethernet switching chip, central processing unit, power supply control chip and DC power supply, interface circuit comprises the input interface of the unshielded twisted pair of connection by the convergence-level switch and is connected to the output interface that the marginal layer switch goes, interface is connected with the Ethernet switching chip that remote monitoring function is provided, Ethernet switching chip will be given central processing unit from the supervisory signal that input interface is separated, central processing unit is monitored power supply control chip, realization is to the supervision and the control of each road electric power thus supplied, DC power supply is loaded into as required is connected on the category 5 twisted pair that the marginal layer switch goes, central processing unit also carries out and the communicating by letter of webmaster, the command process function, the Real-time Alarm of plant failure.
Described remote power supply device, central processing unit is by gathering the state output signal of power supply control chip, monitor the operating state of the port of respectively powering, and after carrying out calculation process with supervisory signal, form ethernet frame and reach Ethernet interface, send NM server to through the convergence-level switch again by Ethernet switching chip.
Described remote power supply device, N Ethernet input port and N power supply output port are corresponding one by one up and down, data enter from Ethernet interface, and the power supply port is combined in data and power supply in the unshielded twisted pair and exports, and wherein No. 1 Ethernet input port is simultaneously as remote ethernet management mouthful.
Described remote power supply device, the CSP of power supply control chip, OUT pin connect the detection resistance R, judge that by the voltage drop of surveying these resistance two ends the power supply port is in and opens circuit or short-circuit condition or normal operating conditions.
Described remote power supply device, the switch of its power supply control chip control field effect transistor is realized power supply is loaded into function on the category 5 twisted pair as required.
Advantage of the present invention is: adopt the ethernet management mouth to carry out Stateful Inspection and control and management, neither influence the transmission of business information, can carry out real time monitoring and control to power supply state again, exempt loaded down with trivial details field device maintenance, manage, worked on power, and can in time respond power supply trouble.This circuit arrangement chip integration height adopts digital signal that power supply is managed, and stable performance is quick on the draw.
Description of drawings
Fig. 1 is the actual use topological diagram of the position of apparatus of the present invention in network;
Fig. 2 is the structured flowchart of apparatus of the present invention;
Fig. 3 is a Control Software flow chart of the present invention;
Fig. 4 is the power supply supply control section schematic diagram of this device.
Embodiment
Below in conjunction with drawings and Examples the present invention is described in further details.
Adopt device of the present invention position such as Fig. 1 in network.It is the remote power supply device that the band remote control function is set between convergence-level switch and marginal layer switch, this device is superimposed upon the 48V power supply on the unshielded twisted pair that is sent to the marginal layer switch, be sent to terminal equipment, pass through power supply control chip, realization realizes the function of Long-distance Control to the monitoring function of power source conversion by central processing unit and Ethernet switching chip.
On this device power supply and data load to unshielded twisted pair, send remote edge layer equipment to.Control to this device can realize Long-distance Control by Ethernet.NM server can be connected the convergence-level switch, also can be positioned at other positions, as long as in same network, just can monitor this device.
Because the 10/100M Ethernet only uses 1,2,3,6 these two pairs of lines of unshielded twisted pair, so this equipment uses 4/5 line butt joint 48V direct current, and 7/8 line is to ground connection.
Concrete performance such as Fig. 2: remote power supply device mainly is made up of RJ45 interface, Ethernet switching chip, central processing unit, power supply control chip, voltage transformation module, rectification filtering module.
The RJ45 interface is the external interface of device, comprises the RJ45 input interface of the unshielded twisted pair of connection by the convergence-level switch and is connected to the RJ45 output interface that the marginal layer switch goes; Adopting exchange chip is for remote monitoring function being provided, realizing the data communication of central processing unit and convergence-level switch; Central processing unit is realized the monitoring function of this equipment and is realized and functions such as the communicating by letter of webmaster, command process, the Real-time Alarm when equipment generation problem can also be provided; Power supply control chip is the core of this equipment, it is on the one hand by controlling the switch of field effect transistor, realization is loaded into function on the unshielded twisted pair as required with power supply, can realize the detection that short circuit, open circuit protection and far-end need power supply unit whether to exist on the other hand, can be by supervision and the control of central processing unit to each road electric power thus supplied; The voltage transformation module is the 220V alternating current to be transformed into-the 48V direct current, if the input of this equipment directly is exactly-the 48V direct current that as the empty frame among Fig. 2, voltage transformation module can not need; Filtration module carries out rectification and filtering with the output voltage of voltage transformation module, and is transformed to 48V voltage, is input in the power supply control chip; By the RJ45 output interface data and power supply are combined on the unshielded twisted pair at last and are sent to remote equipment.
The operation principle of Long-distance Control: an Ethernet interface U1 in the RJ45 input interface links to each other with Ethernet switching chip, other input interfaces do not participate in, therefore be directly connected to output interface, exchange chip separates the business information of this Ethernet interface with management information, business information is through exchange chip and 1/2 of corresponding power supply port, 3/6 line links to each other to U2 and exports, and gives central processing unit (CPU or single-chip microcomputer) through the isolated management information of exchange chip through U3.Central processing unit will be decoded from the management information (signal that NM server is sent Fig. 1 just) that Ethernet interface transmits, by the control of I/O bus realization to power supply control chip.Central processing unit monitors the operating state of the port of respectively powering by gathering the state output signal of power supply control chip, and after carrying out calculation process with control signal, forms ethernet frame and reach Ethernet interface by Ethernet switching chip.Send NM server to through the convergence-level switch again.
Adopt the concrete enforcement of principle of the present invention as follows:
This device has 1 local serial ports, as local management; With interface N=12 is example, 12 Ethernet interfaces, 12 power supply ports are corresponding one by one up and down; Data enter from Ethernet interface, and the power supply port is combined in data and power supply in the unshielded twisted pair and exports, wherein No. 1 Ethernet interface can be simultaneously as remote ethernet management mouthful.24 of total status indicator lamps, the state of corresponding respectively 12 power supply ports show, shows whether whether normal power supply and this port are closed this port; 1 of power lights shows whether complete machine powers up.
The chip that each module adopts among correspondence and Fig. 2 is as follows: Ethernet switching chip adopts the AT8992 integrated circuit in the device, and CPU or one-chip computer module are selected the 77E58 single-chip microcomputer for use, and power supply control chip adopts the MAX5913 integrated circuit; Adopt 3 MAX5913 altogether, every control 4 road ports are controlled it by 77E58.Outside 220V alternating current connects power transfer module, provides 48V direct current through the power protection module, and the 48V direct current connects milliohm level resistance and field effect transistor to the port of powering.
The flow chart of this Equipment Control software such as Fig. 3.Provided the flow process of the main function of Control Software among the figure, promptly carried out the real-time control of equipment and the function of supervision according to the order of webmaster.After the user logins webmaster, can assign various command to equipment, Control Software is operated accordingly according to the command execution that the user assigns on the equipment, and the result is shown on the webmaster.Other functions are as with network management communication, alarm indication and to have an Ethernet switch of management function similar, at this flow chart that just no longer draws.
The CSP of the operation principle of power supply control chip such as Fig. 4: MAX5913, OUT pin connect milliohm level resistance R two ends (R=0.33 Europe), judge that by the voltage drop of surveying these resistance two ends the power supply port is in and opens circuit or short-circuit condition or normal operating conditions, when voltage drop during less than threshold value K0, expression power supply port opens circuit or far-end need not power supply unit; Pressure drop is greater than threshold value K1, and during greater than K2, expression power supply port is working properly; Pressure drop is during greater than threshold value K3, the short circuit of expression power supply port; And by the opening/break of GATE control valve foot control system field effect transistor N, thereby the 48V supply of electrical energy of control power supply port, and then realize the detection that short circuit, open circuit protection and far-end need power supply unit whether to exist automatically.Status-pin STAR1, STAR2, STAR3, STAR4 export the status signal on four-way road respectively, and high level represents that respective channels is illogical, and low level represents that respective channels is working properly; Path control pin ON1, ON2, ON3, ON controls cut-offfing of four-way road respectively according to the incoming level height, opens path during high level, closes path during low level.State shows: gather the status signal of STAR1～STAR4, can drive the corresponding state display lamp by AND gate circuit after anti-phase, be used for representing whether passage has.Gather the status signal of ON1～ON4, can drive the corresponding state display lamp after anti-phase, be used for representing whether passage is available by AND gate circuit.When two lamps are all bright, the expression passage can with but port does not have electricity, if this moment, port have line with need between power supply unit, represent that this line must have short circuit or open circuit fault.
Claims (5)
1, a kind of remote power supply device with remote control function, comprise interface circuit, DC power supply, interface circuit comprises the input interface of the unshielded twisted pair of connection by the convergence-level switch and is connected to the output interface that the marginal layer switch goes, it is characterized in that: in input, Ethernet switching chip is arranged between the output interface, central processing unit, power supply control chip provides remote monitoring function, Ethernet switching chip will be given central processing unit from the supervisory signal that input interface is separated, central processing unit is monitored power supply control chip, realization is to the supervision and the control of each road electric power thus supplied, DC power supply is loaded into as required is connected on the unshielded twisted pair that the marginal layer switch goes, central processing unit also carries out and the communicating by letter of webmaster, the command process function, the Real-time Alarm of plant failure.
2, remote power supply device according to claim 1, it is characterized in that: central processing unit is by gathering the state output signal of power supply control chip, monitor the operating state of the port of respectively powering, and after carrying out calculation process with supervisory signal, form ethernet frame and reach Ethernet interface, send NM server to through the convergence-level switch again by Ethernet switching chip.
3, remote power supply device according to claim 1 and 2, it is characterized in that: N Ethernet input port and N power supply output port are corresponding one by one up and down, data enter from Ethernet interface, the power supply port is combined in data and power supply in the unshielded twisted pair and exports, and wherein No. 1 Ethernet input port is simultaneously as remote ethernet management mouthful.
4, remote power supply device according to claim 1 and 2, it is characterized in that: the CSP of power supply control chip, OUT pin connect the detection resistance R, judge that by the voltage drop of surveying these resistance two ends the power supply port is in and opens circuit or short-circuit condition or normal operating conditions.
5, remote power supply device according to claim 1 and 2 is characterized in that: the switch of power supply control chip control field effect transistor, realize power supply is loaded into function on the unshielded twisted pair as required.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03128211 CN1567816A (en) | 2003-06-26 | 2003-06-26 | A remote power feeding equipment having remote control function |
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|---|---|---|---|
| CN 03128211 CN1567816A (en) | 2003-06-26 | 2003-06-26 | A remote power feeding equipment having remote control function |
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| CN1567816A true CN1567816A (en) | 2005-01-19 |
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| CN 03128211 Pending CN1567816A (en) | 2003-06-26 | 2003-06-26 | A remote power feeding equipment having remote control function |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1708409A3 (en) * | 2005-03-28 | 2006-10-25 | Akros Silicon, Inc. | Systems and methods operable to allow loop powering of networked devices |
| CN100359851C (en) * | 2005-01-28 | 2008-01-02 | 飞博创（成都）科技有限公司 | Optical network unit powered device based on Ethernet power supply mode |
| CN100367724C (en) * | 2005-05-25 | 2008-02-06 | 杭州华三通信技术有限公司 | Switch test device and switch test equipment |
| CN100372285C (en) * | 2005-04-30 | 2008-02-27 | 华为技术有限公司 | Remote power supply system and method |
| CN1992722B (en) * | 2005-10-18 | 2010-05-26 | 国际商业机器公司 | System and method for controlling security of a remote network power device |
| CN102055591A (en) * | 2010-10-25 | 2011-05-11 | 浪潮电子信息产业股份有限公司 | Ethernet power supply module |
| CN101299788B (en) * | 2008-05-27 | 2011-07-27 | 中国移动通信集团广东有限公司韶关分公司 | Central power supply, pull far complicant integration group network |
| CN101299517B (en) * | 2008-05-27 | 2011-12-07 | 中国移动通信集团广东有限公司韶关分公司 | Centralized remote electric power system |
| WO2012055300A1 (en) * | 2010-10-28 | 2012-05-03 | 南京大学 | Long-distance constant-voltage electricity-feeding method with wake-up function and system |
| US8254563B2 (en) | 2005-03-31 | 2012-08-28 | Huawei Technologies Co., Ltd. | System for line powering in communications |
| CN102742109A (en) * | 2012-03-01 | 2012-10-17 | 华为技术有限公司 | Remote supply system and remote power supply |
| CN103379124A (en) * | 2013-06-09 | 2013-10-30 | 国网辽宁省电力有限公司大连供电公司 | Encryption and decryption device for telecontrol 104 protocol network messages |
| CN105467875A (en) * | 2015-11-27 | 2016-04-06 | 上海斐讯数据通信技术有限公司 | Input and output interfaces and switcher remote monitoring device |
| CN106773986A (en) * | 2016-12-30 | 2017-05-31 | 广州澳视互动传媒有限公司 | Digital Transmission case and fault diagnosis system |
-
2003
- 2003-06-26 CN CN 03128211 patent/CN1567816A/en active Pending
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100359851C (en) * | 2005-01-28 | 2008-01-02 | 飞博创（成都）科技有限公司 | Optical network unit powered device based on Ethernet power supply mode |
| EP1708409A3 (en) * | 2005-03-28 | 2006-10-25 | Akros Silicon, Inc. | Systems and methods operable to allow loop powering of networked devices |
| US8254563B2 (en) | 2005-03-31 | 2012-08-28 | Huawei Technologies Co., Ltd. | System for line powering in communications |
| CN100372285C (en) * | 2005-04-30 | 2008-02-27 | 华为技术有限公司 | Remote power supply system and method |
| CN100367724C (en) * | 2005-05-25 | 2008-02-06 | 杭州华三通信技术有限公司 | Switch test device and switch test equipment |
| CN1992722B (en) * | 2005-10-18 | 2010-05-26 | 国际商业机器公司 | System and method for controlling security of a remote network power device |
| CN101299788B (en) * | 2008-05-27 | 2011-07-27 | 中国移动通信集团广东有限公司韶关分公司 | Central power supply, pull far complicant integration group network |
| CN101299517B (en) * | 2008-05-27 | 2011-12-07 | 中国移动通信集团广东有限公司韶关分公司 | Centralized remote electric power system |
| CN102055591A (en) * | 2010-10-25 | 2011-05-11 | 浪潮电子信息产业股份有限公司 | Ethernet power supply module |
| WO2012055300A1 (en) * | 2010-10-28 | 2012-05-03 | 南京大学 | Long-distance constant-voltage electricity-feeding method with wake-up function and system |
| CN102742109A (en) * | 2012-03-01 | 2012-10-17 | 华为技术有限公司 | Remote supply system and remote power supply |
| CN103379124A (en) * | 2013-06-09 | 2013-10-30 | 国网辽宁省电力有限公司大连供电公司 | Encryption and decryption device for telecontrol 104 protocol network messages |
| CN105467875A (en) * | 2015-11-27 | 2016-04-06 | 上海斐讯数据通信技术有限公司 | Input and output interfaces and switcher remote monitoring device |
| CN105467875B (en) * | 2015-11-27 | 2018-01-02 | 上海斐讯数据通信技术有限公司 | A kind of input/output interface and switch remote supervising device |
| CN106773986A (en) * | 2016-12-30 | 2017-05-31 | 广州澳视互动传媒有限公司 | Digital Transmission case and fault diagnosis system |
| CN106773986B (en) * | 2016-12-30 | 2019-03-19 | 广州傲视物联网信息技术有限公司 | Digital Transmission case and fault diagnosis system |
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