CN100481766C - Bus power supply system and method - Google Patents
Bus power supply system and method Download PDFInfo
- Publication number
- CN100481766C CN100481766C CNB2006101409459A CN200610140945A CN100481766C CN 100481766 C CN100481766 C CN 100481766C CN B2006101409459 A CNB2006101409459 A CN B2006101409459A CN 200610140945 A CN200610140945 A CN 200610140945A CN 100481766 C CN100481766 C CN 100481766C
- Authority
- CN
- China
- Prior art keywords
- power supply
- consumption equipment
- power
- bus
- power consumption
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
A bus power supply system comprises bus power supply device, Ethernet power consumption equipment, conventional power consumption equipment and redundant power supply management unit connected with conventional power consumption equipment and used to detect output voltage of power supply adaptor of conventional power consumption equipment. The method utilizing said system to carry out bus power supply is also disclosed.
Description
Technical field
The present invention relates to the industrial automation field, particularly a kind of bus power supply system and method.
Background technology
At industrial control field, a large amount of field apparatuss needs power supply.Conventional at present supply power mode is to increase a power supply adaptor near the equipment of needs power supply.Finish power supply by power supply adaptor to this field apparatus.Though this supply power mode can realize the power supply of common field apparatus, also there is some not enough place.1, when field apparatus more for a long time, increased the workload of installation personnel, increased the expense of installation and maintenance.2, the installation of field apparatus can be subjected to the restriction of position of source, lacks flexibility.3, when a power supply is out of order, field apparatus promptly can't operate as normal, and reliability is lower.
Along with the promulgation of IEEE802.3af standard, provide the method and the standard of industry ethernet power supply.The IEEE802.3af standard has remedied the defective of above-mentioned conventional supply power mode to a certain extent, yet the IEEE802.3af standard is to formulate according to working environment, does not make regulation for the voltage that is lower than 30V.In view of automatic field is generally used the electric power network of 24V, therefore a lot of manufacturers have produced some off-gauge Industrial Ethernet power supply units voluntarily, and they provide the technical grade working power of 24V.In addition, the IEEE802.3af standard guarantees only to give the power consumption equipment by the IEEE802.3af standard to power by the form of detected characteristics signature resistance, and can't give traditional power consumption equipment power supply.Therefore enterprise can only eliminate a large amount of traditional power consumption equipments when carrying out technology upgrading, causes very big waste.Therefore in the Industrial Ethernet Control network that uses the Power over Ethernet technology, compatible traditional power consumption equipment how continues as and uses traditional power consumption equipment power supply to be one to be badly in need of the technical problem that solves.
Therefore, in bus power supply system, compatible traditional power consumption equipment how is for traditional power consumption equipment power supply is the technical issues that need to address of the present invention.
Summary of the invention
The purpose of this invention is to provide a kind of bus power supply system,, be the technical problem of traditional power consumption equipment power supply to solve existing Industrial Ethernet Control Web-compatible tradition power consumption equipment.
Purpose of the present invention also provides a kind of bus-powered method, how to solve in the existing Industrial Ethernet Control network compatible traditional power consumption equipment, is the technical problem of traditional power consumption equipment power supply.
For addressing the above problem, the present invention discloses a kind of bus power supply system, comprise Bus Powered Device and Ethernet power consumption equipment, this electric power system also comprises, traditional power consumption equipment and being used to of linking to each other with described traditional power consumption equipment are detected the redundant power supply administrative unit of the power supply adaptor output voltage of described traditional power consumption equipment.
The power supply adaptor output voltage that detects traditional power consumption equipment when the redundant power supply administrative unit is when normal working range, and Bus Powered Device is as redundant power, to traditional power consumption equipment power supply; When the redundant power supply administrative unit detects described power supply adaptor output voltage not in normal range of operation, traditional power consumption equipment is carried out Power over Ethernet by Bus Powered Device.
Described redundant power supply administrative unit comprises the second voltage sample unit of supply voltage of the first voltage sample unit of the supply voltage that the described Bus Powered Device that is used to sample provides, the described power supply adaptor output that is used to sample and the switch unit that is used for switching according to the first voltage sample unit and the second voltage sample cell voltage value supply power mode.
Described switch unit is no disturbance switch unit, specifically comprises voltage comparator and triode; Opening and closing by the high level and the low level of described comparator output are controlled triode realize the switching of supply power mode.
Described Bus Powered Device is specially power supplying switch or hub.
The present invention also discloses a kind of bus-powered method, may further comprise the steps:
1) judge whether to be traditional power consumption equipment, if execution in step 2, otherwise directly power by Bus Powered Device;
2) output voltage of the power supply adaptor of the traditional power consumption equipment of detection;
3) whether the value of judging described output voltage is in normal range of operation, if execution in step 4, otherwise execution in step 5;
4) power supply adaptor is described traditional power consumption equipment power supply, and Bus Powered Device is a redundant power;
5) switching Bus Powered Device is traditional power consumption equipment power supply, execution in step 2.
Described step 5 adopts no disturbance switching mode to switch.
Described step 2 detects the power supply adaptor voltage of traditional power consumption equipment by the redundant power supply administrative unit.
Described step 3 judges by the redundant power supply administrative unit whether described magnitude of voltage is in normal range of operation.
Compare with background technology, the invention has the beneficial effects as follows:
Because the present invention's tradition power consumption equipment is directly connected on the Bus Powered Device, and the present invention has also increased the redundant power supply administrative unit, by the redundant power supply administrative unit output voltage of the power supply adaptor of traditional power consumption equipment is sampled, determine the supply power mode of legacy equipment according to this sample voltage value.Therefore, the present invention can compatible traditional power consumption equipment, and is traditional power consumption equipment power supply as required.
Description of drawings
Fig. 1 is a bus power supply system topological structure schematic diagram of the present invention;
Fig. 2 is the present invention's tradition power consumption equipment power supply schematic diagram;
Fig. 3 is Ethernet power consumption equipment power supply schematic diagram of the present invention;
Fig. 4 is a kind of execution mode circuit diagram of redundant power supply administrative unit of the present invention;
Fig. 5 is the bus-powered a kind of flow chart of the present invention.
Embodiment
Below in conjunction with accompanying drawing specific embodiments of the invention are described further.
The invention provides a kind of bus power supply system, solve existing Industrial Ethernet Control Web-compatible tradition power consumption equipment, be the technical problem of traditional power consumption equipment power supply.
Referring to Fig. 1, this figure is bus power supply system topological structure signal of the present invention.
Bus power supply system of the present invention, comprise Bus Powered Device 1 and Ethernet power consumption equipment 3, this electric power system also comprises, traditional power consumption equipment 2 and being used to of linking to each other with described traditional power consumption equipment 2 are detected the redundant power supply administrative unit 5 of power supply adaptor 4 output voltages of described traditional power consumption equipment 2.
A complete industry ethernet electric power system generally comprises Power over Ethernet equipment and power consumption equipment.The present invention adopts power supplying switch or hub as Bus Powered Device 1.Tradition power consumption equipment 2 and Ethernet power consumption equipment 3 all are power consumption equipments.Bus Powered Device 1 is connected with power consumption equipment by the Ethernet cable, provides working power to power consumption equipment when carrying out the signal transmission.
Each traditional power consumption equipment 2 of the present invention all has a corresponding power supply adaptor 4 and redundant power supply administrative unit 5.Concrete annexation sees also Fig. 2 and shown in Figure 3.
Referring to Fig. 2, this figure is the present invention's tradition power consumption equipment power supply schematic diagram.
Tradition power consumption equipment 2 can be selected to obtain working power from traditional power supply adaptor 4, also can select to obtain working power from the power supplying switch or the hub of Bus Powered Device 1.The selection of tradition power consumption equipment 2 supply power modes realizes by redundant power supply administrative unit 5.
The two-way power supply of 5 pairs of inputs of redundant power supply administrative unit is judged selection, and detailed process is as follows:
The output voltage that detects traditional power consumption equipment 2 corresponding power adapters 4 when redundant power supply administrative unit 5 provides working power by power supply adaptor 4 for traditional power consumption equipment 2 when normal working range.At this moment, Bus Powered Device 1 is as redundant power, not to traditional power consumption equipment 2 power supplies.
The output voltage that detects traditional power consumption equipment 2 corresponding power adapters 4 when redundant power supply administrative unit 5 carries out Power over Ethernet by 1 pair of traditional power consumption equipment 2 of Bus Powered Device during not in normal range of operation.At this moment, this power supply adaptor 4 is not to traditional power consumption equipment 2 power supplies.
When power supply adaptor 4 provided working power can for traditional power consumption equipment 2, then redundant power supply administrative unit 5 just selected this power supply adaptor 4 to give traditional power consumption equipment 2 power supplies.The power supply that provide Bus Powered Device 1 this moment is as redundant power.When power supply adaptor 4 breaks down, switch to by Bus Powered Device 1 by redundant power supply administrative unit 5 again and power for traditional power consumption equipment 2.Like this, the detection by redundant power supply administrative unit 5 judges, can make compatible traditional power consumption equipment 2 in the network of Power over Ethernet system, and also realize the redundant power supply of Power over Ethernet system to traditional power consumption equipment 2.
Referring to Fig. 3, this figure is an Ethernet power consumption equipment power supply schematic diagram of the present invention.
Ethernet power consumption equipment 3 can directly obtain working power from bus-powered unit 1.So just make the installation of Ethernet power consumption equipment 3 not be subjected to the restriction of position of source, improved installation flexibility greatly, simultaneously the wiring cost of also saving and reduced the complexity of wiring.
When Ethernet power consumption equipment 3 access networks, the power supplying switch of bus-powered unit 1 or hub detect it can not obtain working power from traditional power supply adaptor, so power supplying switch or hub directly provide working power for it.
Power over Ethernet equipment 3 of the present invention can also be realized and being connected of Bus Powered Device 1 by redundant power supply administrative unit 5.
In order to further specify redundant power supply administrative unit 5 of the present invention is how to realize the switching of the supply power mode of Bus Powered Device 1 and power supply adaptor 4, specifies the process that redundant power supply administrative unit 5 is switched supply power mode below in conjunction with Fig. 4.
Referring to Fig. 4, this figure is a kind of execution mode circuit diagram of redundant power supply administrative unit of the present invention.
Redundant power supply administrative unit 5 of the present invention specifically comprises the second voltage sample unit 52 of supply voltage of the first voltage sample unit 51 of the supply voltage that the described Bus Powered Device 1 that is used to sample provides, described power supply adaptor 4 outputs that are used to sample and the switch unit that is used for switching according to the first voltage sample unit 51 and the second voltage sample unit, 52 magnitudes of voltage supply power mode.
Described switch unit is no disturbance switch unit, specifically comprises voltage comparator U1 and triode Q1.High level and low level by described comparator U1 output are controlled the opening and closing of triode Q1, thereby have realized the switching of supply power mode.
The physical circuit design of 5 one kinds of execution modes of redundant power supply administrative unit of the present invention comprises two feature sampling units i.e. first voltage sample unit 51 and 52, one the comparator U1 in the second voltage sample unit and a triode Q1.The two-way power supply is sampled by the feature sampling unit respectively, i.e. the supply voltage that the described Bus Powered Device 1 of the first voltage sample unit 51 sampling provides; The supply voltage of described power supply adaptor 4 outputs of the second voltage sample unit, 52 samplings.According to the turn-on and turn-off of the voltage result who samples, realize the redundant power supply management function of bus power supply system by comparator control triode.
The power supply that Bus Powered Device 1 provides is power supply A; The power supply of power supply adaptor 4 outputs is power supply B.
The concrete working condition of redundant power supply administrative unit:
Power supply A is connected the first voltage sample unit 51 and the second voltage sample unit 52 respectively with power supply B, the first voltage sample unit 51 and the second voltage sample unit 52 are transported to the voltage signal of the power supply A that samples and power supply B at the input two ends of comparator U1, after a resistance R 1 is passed through in the output of comparator U1, be connected to the base stage of triode Q1.The positive pole of power supply A connects the emitter of triode Q1, and the collector electrode of triode Q1 connects power output end.The positive pole of power supply B is connected to power output end by a diode D1.When the output valve of the second voltage sample unit 52 during greater than the output valve of the first voltage sample unit 51, think that power supply B is in normal condition, comparator U1 output HIGH voltage ends triode Q1, and this moment, power supply B was the powered operation power supply of traditional power consumption equipment 2.Because power supply A is switch with function of supplying power or hub from Bus Powered Device 1, it keeps the operating voltage of traditional power consumption equipment 2 always, when power supply B broke down, triode Q1 realized the redundant power supply of 1 pair of traditional power consumption equipment 2 of Bus Powered Device with conducting immediately.
When the output valve of the second voltage sample unit 52 during less than the output valve of the first voltage sample unit 51, comparator U1 output LOW voltage makes triode Q1 conducting, and this moment, power supply A was traditional power consumption equipment 2 powered operation power supplys, realized the industry ethernet power supply.
Explanation to power supply A and power supply B:
The power supply that power supply A provides for Bus Powered Device 1.Be specially the switch of power supply or hub and offer the power supply that the power consumption equipment that is connected thereto provides.
Power supply B is the power supply of power supply adaptor 4 outputs.Power supply B is at traditional power consumption equipment 2, is meant the power supply by power supply adaptor 4 outputs.There is not this power supply on the Ethernet power consumption equipment 3.
The invention provides a kind of bus-powered method, how to solve in the existing Industrial Ethernet Control network compatible traditional power consumption equipment, is the technical problem of traditional power consumption equipment power supply.
Because traditional power consumption equipment is directly connected on the Bus Powered Device in the system of the present invention, and increased the redundant power supply administrative unit, obtain Bus Powered Device power supply (referring to Fig. 2 and Fig. 3) by the redundant power supply administrative unit, and by the redundant power supply administrative unit output voltage of the power supply adaptor of traditional power consumption equipment is sampled (referring to Fig. 4), determine the supply power mode of legacy equipment according to this sample voltage value.Therefore, system of the present invention can compatible traditional power consumption equipment, and is traditional power consumption equipment power supply as required.
Referring to Fig. 5, this figure is the bus-powered a kind of flow chart of the present invention.
Bus-powered method of the present invention may further comprise the steps:
S10, judge whether to be traditional power consumption equipment, if execution in step S20, otherwise directly power by Bus Powered Device.
When traditional power consumption equipment and Ethernet power consumption equipment all are connected on the Bus Powered Device, need judge whether power consumption equipment is traditional power consumption equipment.When power consumption equipment was the Ethernet power consumption equipment, bus-powered unit only need directly provide power supply to get final product, and needn't carry out other detection.When power consumption equipment is traditional power consumption equipment, detected with just need carrying out subsequent step.
The output voltage of the power supply adaptor of S20, the traditional power consumption equipment of detection.
Detect the output voltage of the power supply adaptor of traditional power consumption equipment, specifically detect by the redundant power supply administrative unit.
Detect the electric power thus supplied of traditional power consumption equipment, promptly the power supply adaptor output voltage of traditional power consumption equipment is sampled, obtain information such as the size of power supply adaptor output voltage and stability by the voltage sample unit in the redundant power supply administrative unit.
S30, judge whether described magnitude of voltage is in normal range of operation, if execution in step S40, otherwise execution in step S50.
Whether the output voltage values of judging the power supply adaptor of detected traditional power consumption equipment by the redundant power supply administrative unit is in normal range of operation.
Judge the electric power thus supplied of traditional power consumption equipment, the power supply adaptor output voltage that detects traditional power consumption equipment when the redundant power supply administrative unit within normal working range, execution in step S40.When the electric power thus supplied that detects traditional power consumption equipment when the redundant power supply administrative unit goes wrong, when promptly the power supply adaptor output voltage is not within normal range of operation, execution in step S50.
S40, power supply adaptor are described traditional power consumption equipment power supply, and Bus Powered Device is a redundant power.
Be described traditional power consumption equipment power supply by power supply adaptor this moment.Bus Powered Device does not provide power supply to traditional power consumption equipment, but exists as redundant power.
S50, switching Bus Powered Device are traditional power consumption equipment power supply, execution in step S20.
Can adopt no disturbance switching mode to switch traditional power consumption equipment supply power mode, being switched to by Bus Powered Device by the power supply adaptor supply power mode is the supply power mode of traditional power consumption equipment power supply.
No disturbance switches to carries out Power over Ethernet to traditional power consumption equipment, and promptly the redundant power supply administrative unit is opened triode by its inner comparator output HIGH voltage, traditional power consumption equipment is not had disturbance switch to Power over Ethernet.
The redundant power supply administrative unit can also detect the output voltage of power supply adaptor in real time, when the output voltage of power supply adaptor for the normal working voltage scope in the time, comparator output LOW voltage by redundant power supply administrative unit inside is closed triode, and the supply power mode of traditional power consumption equipment is not had the supply power mode that disturbance switches to power supply adaptor.
Because the method for the invention is sampled to the output voltage of the power supply adaptor of traditional power consumption equipment, whether for the normal power supply scope, determines the supply power mode of legacy equipment according to this sample voltage value.Therefore, the method for the invention can be used traditional power consumption equipment, and is traditional power consumption equipment power supply as required.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (8)
1, a kind of bus power supply system, comprise Bus Powered Device and Ethernet power consumption equipment, it is characterized in that, this electric power system also comprises, traditional power consumption equipment and being used to of linking to each other with described traditional power consumption equipment are detected the redundant power supply administrative unit of the power supply adaptor output voltage of described traditional power consumption equipment;
The power supply adaptor output voltage that detects traditional power consumption equipment when the redundant power supply administrative unit is when normal working range, and Bus Powered Device is as redundant power, to traditional power consumption equipment power supply; When the redundant power supply administrative unit detects described power supply adaptor output voltage not in normal range of operation, traditional power consumption equipment is carried out Power over Ethernet by Bus Powered Device.
2, bus power supply system according to claim 1, it is characterized in that described redundant power supply administrative unit comprises the second voltage sample unit of supply voltage of the first voltage sample unit of the supply voltage that the described Bus Powered Device that is used to sample provides, the described power supply adaptor output that is used to sample and the switch unit that is used for switching according to the first voltage sample unit and the second voltage sample cell voltage value supply power mode.
3, bus power supply system according to claim 2 is characterized in that, described switch unit is no disturbance switch unit, specifically comprises voltage comparator and triode; Opening and closing by the high level and the low level of described comparator output are controlled triode realize the switching of supply power mode.
4, bus power supply system according to claim 1 is characterized in that, described Bus Powered Device is specially power supplying switch or hub.
5, a kind of bus-powered method is characterized in that, this method comprises:
1) judge whether to be traditional power consumption equipment, if execution in step 2), otherwise directly power by Bus Powered Device;
2) output voltage of the power supply adaptor of the traditional power consumption equipment of detection;
3) whether the value of judging described output voltage is in normal range of operation, if execution in step 4), otherwise execution in step 5);
4) power supply adaptor is described traditional power consumption equipment power supply, and Bus Powered Device is a redundant power;
5) switching Bus Powered Device is traditional power consumption equipment power supply, execution in step 2).
6, bus-powered method according to claim 5 is characterized in that, described step 5) adopts no disturbance switching mode to switch.
7, bus-powered method according to claim 5 is characterized in that, described step 2) detect the power supply adaptor voltage of traditional power consumption equipment by the redundant power supply administrative unit.
8, bus-powered method according to claim 7 is characterized in that, described step 3) judges by the redundant power supply administrative unit whether described magnitude of voltage is in normal range of operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101409459A CN100481766C (en) | 2006-10-17 | 2006-10-17 | Bus power supply system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101409459A CN100481766C (en) | 2006-10-17 | 2006-10-17 | Bus power supply system and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1933405A CN1933405A (en) | 2007-03-21 |
| CN100481766C true CN100481766C (en) | 2009-04-22 |
Family
ID=37879040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006101409459A Expired - Fee Related CN100481766C (en) | 2006-10-17 | 2006-10-17 | Bus power supply system and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100481766C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102457384A (en) * | 2010-10-28 | 2012-05-16 | 鸿富锦精密工业（深圳）有限公司 | Power device |
| CN104780053A (en) * | 2015-03-30 | 2015-07-15 | 深圳市共进电子股份有限公司 | Power supply device |
-
2006
- 2006-10-17 CN CNB2006101409459A patent/CN100481766C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1933405A (en) | 2007-03-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1639650A (en) | Protection system for power distribution systems | |
| CN201571166U (en) | Switch machine test system | |
| CN101789596A (en) | Automatic detection method of power grid failure | |
| CN101867221B (en) | Single board and method for power monitoring in board | |
| CN106776428A (en) | Terminal device, read-write equipment, data transmission system and hardware initialization method | |
| WO2022222507A1 (en) | Mlpe photovoltaic system and mlpe device detection method thereof | |
| CN100481766C (en) | Bus power supply system and method | |
| CN216699490U (en) | Intelligent overcurrent protection circuit | |
| CN105720690A (en) | Intelligent circuit breaker communication networking system | |
| CN102968184B (en) | A kind of KVM long-distance management system | |
| CN101846998B (en) | Redundant digital electric-hydraulic control system for turbine | |
| CN101873346B (en) | Remote on-off control system | |
| CN109672369A (en) | A kind of matrix drive device suitable for automatic vending machine cargo path motor | |
| CN112688684B (en) | Addressing circuit, method and equipment | |
| CN101470648B (en) | Power supply switch control system | |
| CN208796098U (en) | Detection circuit and its CC logic control chip | |
| CN103217620B (en) | The carding method of transformer and electric energy meter relation | |
| CN208174704U (en) | A kind of exception protection circuit and electronic equipment | |
| CN106247571A (en) | A kind of air-conditioner centralized control system | |
| CN112491137A (en) | Moving ring centralized management equipment of auxiliary integrated control system of substation | |
| CN206164207U (en) | Distribution network ground protection measurement and control device | |
| CN104237785B (en) | Dry-type transformer on-load tap-changer tester and method thereof | |
| CN203934028U (en) | The control device of the multiple electrical control interface of a kind of automatic adaptation | |
| US11881815B2 (en) | Photovoltaic inverter system, automatic locating method of rapid shutdown devices and fault control method thereof | |
| Yan et al. | Research of On-line Monitoring System based on Modbus for Multi-State Quantity Monitoring of High Voltage Switchgear |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090422 Termination date: 20181017 |