EP2873198A1 - Connecteur intelligent et contrôleur de bus - Google Patents

Connecteur intelligent et contrôleur de bus

Info

Publication number
EP2873198A1
EP2873198A1 EP13737230.6A EP13737230A EP2873198A1 EP 2873198 A1 EP2873198 A1 EP 2873198A1 EP 13737230 A EP13737230 A EP 13737230A EP 2873198 A1 EP2873198 A1 EP 2873198A1
Authority
EP
European Patent Office
Prior art keywords
bus
unit
intelligent connector
port
coupling
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.)
Withdrawn
Application number
EP13737230.6A
Other languages
German (de)
English (en)
Inventor
Mingjie FAN
Yuming Song
Junying Liu
Yulin FENG
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tyco Electronics Shanghai Co Ltd
Original Assignee
Tyco Electronics Shanghai Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from CN201210246232.6A external-priority patent/CN103368015B/zh
Application filed by Tyco Electronics Shanghai Co Ltd filed Critical Tyco Electronics Shanghai Co Ltd
Publication of EP2873198A1 publication Critical patent/EP2873198A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/40—Bus networks
    • H04L12/40006—Architecture of a communication node
    • H04L12/40032—Details regarding a bus interface enhancer
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/40—Bus networks
    • H04L12/40006—Architecture of a communication node
    • H04L12/40045—Details regarding the feeding of energy to the node from the bus
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/40—Bus networks
    • H04L2012/40208—Bus networks characterized by the use of a particular bus standard
    • H04L2012/40234—Local Interconnect Network LIN

Definitions

  • the present invention relates to electrical appliances, and particularly to an intelligent connector arranged to couple a slave module with a bus in an electrical appliance, and a bus controller arranged to couple a master control module with a bus in an electrical appliance.
  • an intelligent connector for coupling a bus with at least one slave module in an electrical appliance, the intelligent connector including: a signal processing unit for communicating signals between the bus and the slave modules, processing the communication signal, and responding to a control signal from the bus when the control signal received has a same address as an address of the signal processing unit; a first port coupled between the bus and the signal processing unit for transmitting signals between the bus and the signal processing unit, said first port being coupled to a power line for receiving power supply; and a second port coupled between the signal processing unit and the slave modules for transmitting signals between them, said second port also being arranged to provide power supply to the slave modules.
  • the intelligent connector not only can transmit signals and provide power supply between the bus and the slave modules, but also respond to and process the control signal from the bus. This allows the slave modules coupled with the signal processing unit, especially some machines or appliance modules (such as heaters, motors, valves, and etc.), to have signal processing capability, so as to improve the controllability and the operating efficiency of the overall operation of the electrical appliance.
  • some machines or appliance modules such as heaters, motors, valves, and etc.
  • the signal processing unit includes a filtering sub-unit, a signal amplifying sub-unit, a digital/analog converting sub-unit, an analog/digital converting sub-unit, and/or a modulating/demodulating sub-unit.
  • the intelligent connector further includes: a power control unit coupled between the first port and the second port, the power control unit also being coupled to the signal processing unit for switching connection of the slave modules with the power line under a control of the signal processing unit so as to control the power supplied to the slave modules.
  • the power supply of the slave module is directly controlled by the master control module that is distant from the slave modules.
  • the power control unit of the abovementioned intelligent connector is located closer to the slave modules, and its connection with the slave modules is simpler. Therefore, the number of wires in the electrical appliance can be effectively reduced.
  • the power control unit contains a relay or a controllable switch.
  • the power control unit further contains an AC-DC converter sub-unit for converting the power supply provided by the power line from an alternating current to a direct current, and providing the converted power supply to the slave modules and/or the signal processing unit.
  • the power control unit further contains a DC-DC converter sub-unit for converting a voltage supply of a direct current power supplied by the power line, and for providing the converted power supply to the slave modules and/or the signal processing unit.
  • the bus is a power line carrier communication circuit.
  • the intelligent connector further contains: a second modem unit coupled to the signal processing unit for signal modulation and/or demodulation; and a second coupling unit coupled between the second modem unit and the first port for communicating the modulated signals between the second modem unit and the bus.
  • the bus is a DC power line communication bus
  • the intelligent connector further including a second modem unit coupled between the signal processing unit and the first port for signal modulation and/or demodulation.
  • the intelligent connector described in the above embodiment is adapted to receive the power line carrier bus or DC power line communication bus.
  • the power line carrier bus or DC power line communication bus there is no need to use extra data signal wires for transmitting data signals, and therefore the number of the wires in the electrical appliance can be further reduced.
  • the first port is a PSI5 bus port.
  • the first port is a S-485 bus port or a LIN bus port.
  • the second port is coupled to the slave modules through direct contact or indirect contact.
  • the intelligent connector further contains an extended interface for coupling an extended unit to the signal processing unit.
  • a bus controller for coupling a bus with a master control module in an electrical appliance.
  • the bus controller includes a control unit for communicating signals between the bus and the master control module.
  • the control unit is arranged to add a destination address to a control signal from the master control module, wherein the destination address indicates an address of the intelligent connector coupled to the bus corresponding to the control signal.
  • the master control module can interact with the slave modules through the bus and control the operation of the slave modules.
  • the master control module does not have to have separate interfaces for connecting with each slave module. Therefore the number of the wires in the electrical appliance can be further reduced, and thus the control circuit module may be less complicated.
  • the bus controller further contains: a first modem unit for signal modulation and/or demodulation; and a first coupling unit coupled to the first modem unit for communicating the modulated signal between the first modem unit and the bus.
  • the bus contains multiple bus branches.
  • the first coupling unit further contains multiple coupling sub-units.
  • Each coupling sub-unit respectively couples to one of the multiple bus branches; and wherein the bus controller further contains a multiplexing unit having multiple data signal channels.
  • the multiplexing unit is arranged to select a data signal channel from the multiple data signal channels for communicating signals between the first modem unit and the control unit.
  • the bus controller has a multiplexing unit for switching the data signal channels, the bus controller only needs to have a modem unit, and this modem unit is shared by multiple coupling sub-units in the coupling unit.
  • each coupling sub-unit contains a primary coil and a secondary coil, wherein each secondary coil respectively couples to a bus branch through a coupling capacitor.
  • the first coupling unit includes a primary coil, each coupling sub-unit contains a secondary coil; and the multiple coupling sub-units share the primary coil, wherein each secondary coil is respectively coupled to a bus branch through coupling capacitor.
  • the bus controller couples to the bus through a RS-485 bus interface, a LIN bus interface or a PSI5 bus interface.
  • FIG. 1 illustrates a control circuit 100 including a bus controller 1 10 and an intelligent connector 120 in accordance with one embodiment of the present invention
  • Figure 2 illustrates an embodiment of the bus controller 1 10 as shown in Figure 1
  • Figure 3 illustrates an embodiment of the intelligent connector 120 as shown in Figure 1 ;
  • Figure 4 illustrates another embodiment of the intelligent connector 120 as shown in Figure 1 ;
  • FIG. 5 illustrates a control circuit 200 including a bus controller 210 and an intelligent connector 220 in accordance with another embodiment of this invention
  • Figures 6 and 7 respectively illustrate an embodiment of the bus controller 210 and the intelligent connector as shown in Figure 5;
  • FIGs 8 and 9 respectively illustrate another embodiment of the bus controller 210 and the intelligent connector as shown in Figure 5;
  • Figure 10 illustrates an embodiment of a first coupling unit 213 and a second coupling unit 225;
  • Figure 1 1 illustrates another embodiment of the bus controller as shown in Figure 5.
  • Figure 1 illustrates a control circuit 100 including a bus controller 1 10 and an intelligent connector 120.
  • the control circuit 100 is installed in an electrical appliance (not shown) for coupling a master control module 130 with at least one slave module 140 in the electrical appliance, so as to realize signal communication or exchange between the master control module 130 and the slave module 140.
  • the electrical appliance may be for example home appliances, industrial equipment, or numerical control (NC) machine tools, etc.
  • the master control module 130 refers to the module for controlling the operation of the slave modules 140. Based on the user input or the instructions generated by an application program, the master control module 130 generates control signals for controlling the operation of the slave modules 140.
  • the slave modules 140 include micro-controller units, micro-processors or other suitable electronic devices.
  • Slave module 140 refers to electronic or electro-mechanical module that is coupled to the master control module 130 through the control circuit 100.
  • the operation of the slave modules 140 is controlled by the control signals provided by the master control module 130 such as heater, radiator, actuator, etc.
  • the slave module 140 such as sensor can also generate feedback signals.
  • the operation of the slave module 140 can be maintained by the power supply loaded thereon, and its operation status can be changed according to different power supplies (for example different power, current or voltage supply).
  • the number of the slave modules 140 as shown in Figure 1 is exemplary and a person skilled in the art may appreciate that the number of the slave modules 140 in the electronic appliance should not be limited to three, but can be one, two or more than three in practical applications.
  • one intelligent connector 120 can also correspond to two or more slave modules 140.
  • the control circuit 100 adopts a bus construction, in which there is a bus 150 for coupling the intelligent connector 120 with the bus controller 110 for transmitting data signals.
  • the control signal from the master control module 130 can be transmitted to the intelligent connector 120 through bus 150, and can be further provided to the corresponding slave modules 140 through the intelligent connector 120; alternatively, the feedback signal from the slave modules 140 can be transmitted to the bus controller 110 through bus 150, and can be further provided to the master control module 130 through bus controller 1 10.
  • the intelligent connector 120 is also coupled to the power line 160 for receiving the power supply (such as the power supply from the power source) from the power line 160, and in turn provides power to the slave modules 140.
  • the power line 160 is introduced into the intelligent connector 120 through bus 150, that is, bus 150 includes a signal bus 151 for transmitting signals and a power bus 152 for delivering power.
  • the power bus 152 can either obtain power supply by indirectly coupling to the power line 160 through the bus controller 110, or by directly coupling to the power line 160 on the electrical appliances.
  • the connection between the power bus 152 and the power line 160 can be either of the aforesaid two coupling methods; or by both of these two methods, as shown in Figure 1.
  • the power line 160 can be directly coupled to the intelligent connector 120 without using bus 150, and power can be provided to the corresponding slave modules 140 through the intelligent connector 120.
  • Figures 2 and 3 respectively illustrate an example of the bus controller 1 10 and the intelligent connector 120. Next, by combining Figures 1 -3, the bus controller 1 10 and the intelligent connector 120 are described in further detail.
  • bus controller 1 10 is arranged for coupling the bus 150 with the master control module 130, where the bus controller 1 10 includes:
  • control unit 1 1 1 1 for communicating signals between the bus 150 and the master control module 130, the control unit 1 1 1 is arranged to add a destination address to the control signal from the master control module 130, wherein the destination address indicates an address of the intelligent connector 120 coupled to the bus 150 corresponding to the control signal.
  • the control signal from the bus controller 1 10 to the bus 150 can be recognized by the corresponding intelligent connector 120, and this in turn allows the intelligent connector 120 to control the corresponding actions of the slave modules 140 with which it couples with. It can be understood that the control unit 1 1 1 can also deliver other signals from the master control module 130 to the bus 150.
  • the bus controller 1 10 further includes an interface unit 1 12 arranged to match the signal transmission such as signal timing, signal level, signal format, etc. between the control unit 1 1 1 and the bus 150.
  • the bus controller 110 can be coupled to the bus 151, 152 through S-485 bus interface or LIN (Local Interconnect Network) bus interface, and the bus controller 110 transmits signal according to the corresponding bus protocol specification. It can be understood that the bus controller 110 can also use other suitable bus interfaces and corresponding bus protocol specifications to communicate signals with bus 151, 152.
  • bus controller 110 can be a single hardware module, and can be coupled to the master control module 130.
  • This implementation method has good compatibility and can be seamlessly integrated with the master control module 130.
  • bus controller 1 10 can be integrated in the master control module 130 in a firmware or software format. Hardware with such implementation is relatively low cost, and can be realized only by updating the software or firmware code in the master control module 130.
  • the intelligent connector 120 is arranged to couple the bus 150 and at least one slave module 140, where the intelligent connector 120 includes:
  • a signal processing unit 121 for communicating signals between the bus 150 and the slave module 140 and for processing the communicating signals, and for responding to a control signal with a corresponding address from the bus 150 upon receiving such a control signal;
  • a first port 122 coupled between bus 150 and the signal processing unit 121 for transmitting signals between them, the first port 122 is also coupled to a power line 160 for receiving power supply;
  • a second port 123 coupled between the signal processing unit 121 and the slave module 140 for transmitting signals between them, the second port also providing the slave module 140 with power supply.
  • different intelligent connectors 120 coupled to the bus 150 have different addresses, so that they can be distinguished from each other and can be recognized by the bus controller 1 10.
  • the bus controller 110 In an electrical appliance installed with a control circuit 100, when the master control module 130 controls the slave modules 140, the bus controller 110 first receives the control signals provided by the master control module 130. Then, the bus controller 1 10 packs the control signals as data packets, and adds the destination address to the control signals. Afterwards, the bus controller 1 10 sends the packed control signals to bus 150, and distributes the control signals to each intelligent connector 120 coupled with the bus 150 through the bus 150.
  • the signal processing unit 121 in each intelligent connector 120 Upon receiving the packed control signals and the destination address, the signal processing unit 121 in each intelligent connector 120 will check and determine whether the destination address corresponds to its own address: if the destination address matches the address of the intelligent connector 120, the signal processing unit 121 unpacks the data packet to acquire the control signals; if the destination address does not match the address of signal processing unit 121 , the data packet will be discarded. And then, signal processing unit 121 responds to the control signals acquired, and operates according to the different controlling instructions in the control signals.
  • the signal processing unit 121 may comprise a filtering sub-unit, a signal amplifying sub-unit, a D/A converter sub-unit, a A/D convertor sub-unit and/or a modulation/demodulation sub-unit. These sub-units can perform corresponding signal processing to the signals communicated with the intelligent connector 120.
  • the intelligent connector 120 can transmit signals and provide power supply between the bus 150 and the slave modules 140, and can also respond to and process the control signals from the bus 150. This allows the slave modules 140 to which it is connected, especially some machine or appliance module (such as heater, motor, valve, etc.), to have signal processing capability, and this improves the controllability and efficiency of the overall operation of the electrical appliance.
  • some machine or appliance module such as heater, motor, valve, etc.
  • the control unit 1 1 1 in the bus controller 1 10 is used for communicating signals between the bus 150 and the master control module 130.
  • signal processing unit 121 in the intelligent controller 120 is arranged to communicate signals between the bus 150 and the slave modules 140.
  • the slave module 140 may be a sensor which is a module that can generate sensing data. The sensed data can reflect the operating status of the electrical appliance.
  • the slave module 140 may be a temperature sensor which detects the temperature variations within the electrical appliance, and generates a feedback signal in response to the temperature variations.
  • the operation state of the slave module 140 may change in accordance with the change in operation status of the electrical appliance.
  • the slave module is a radiator (such as a fan), the thermal dissipation efficiency of the radiator may change as the local temperature or global temperature in the electrical appliance changes.
  • the feedback signal may also be a response by the slave module 140 to the control signal provided by the master control module 130.
  • the intelligent connector 120 can receive feedback signals from the slave modules 140.
  • the feedback signal contains the sensing data reflecting the operation state of the electrical appliance, or other signals from the slave module 140. Then, the intelligent connector 120 encapsulate the feedback signals.
  • the intelligent connector 120 may add an address in the feedback signals for instructing the slave module 140 that is arranged to transmit those feedback signals. Then, the slave module 140 transmits the feedback signals to the bus controller 1 10 through the bus 150. Afterwards, the bus controller 1 10 decodes the encapsulated feedback signals and provides the feedback signals to the master control module 130. In this way, the master control module 130 may determine the operation status of each slave modules 140 in the electrical appliance, and further centralizes the management and control of these slave modules 140.
  • the bus 150 includes a signal bus 151 and a power bus 152.
  • the first port 122 of the intelligent connector 120 is adapted for connecting these two buses 151 , 152, so as to match its signal transmission such as signal timing, signal level, signal format, etc. with the bus 151 , 152.
  • the first port 122 of the intelligent connector 120 can be a S-485 bus interface or LIN bus interface which transmits signals according to the corresponding bus protocol specification.
  • the bus controller 1 10 can also be coupled to the bus 150 by a RS-485 bus interface or a LIN bus interface. It should be understood that, the intelligent connector 120 and the bus controller 110 can communicate signals with the bus 151 , 152 by using other suitable bus interfaces and corresponding bus protocol specifications.
  • the second port 123 is arranged to couple the intelligent connector 120 with the slave module 140. This second port
  • 123 can be coupled to the slave module 140 through direct contact, i.e. achieving transmission of signal and power supply through conductive leads or conductive contact strips, etc., that requires direct contact.
  • the second port 123 may be coupled to the slave module 140 without contact, i.e. achieving transmission of signal and power supply through electromagnetic field, light waves, ultrasonic waves or other media.
  • the intelligent connector 120 also includes one or more extended interfaces arranged to connect the extended sub-unit.
  • the extended interfaces support devices such as input devices, display devices or other extended sub-units that is suitable for coupling to the intelligent connector 120.
  • Extended interfaces such as UART (Universal Asynchronous Receiver/Transmitter), I 2 C ( Inter-Integrated Circuit) , SPI ( Serial Peripheral Interface ) or other interfaces may be used.
  • the first port 122 of the intelligent connector 120 is coupled to the power line 160 by the bus 150 in order to receive power supply provided by the power line 160. Also, the first port 122 and the second port 123 are in direct electric contact, such that the power supply received can be supplied to the slave modules 140 by the second port 123.
  • Figure 4 illustrates another example of the intelligent connector 120 as shown in Figure 1.
  • the intelligent connector 120 also includes a power source control unit 124 for controlling the power supply.
  • the power source control unit 124 is coupled between the first port 122 and the second port 123, and is further coupled to the signal processing unit 121 for switching the connection of the slave modules 140 and the power line 160 in order to control the power supplied to the slave modules 140.
  • the intelligent connector 120 may include circuit control elements, such as controllable switches, relays, etc.
  • the controllable switch or relay is disposed in the electrical pathway from the power line 160 to the slave module 140, and is arranged to change the power supplied to the slave module 140 based on status of the circuit control elements.
  • the power supply provided by the power line 160 is an alternating current.
  • the power source control unit 124 may further include an AC-DC converting sub-unit for converting the power supply provided by the power line 160 from alternating current (AC) to direct current, and provides all the converted power supply to the slave modules 140 and/or the signal processing unit 121.
  • the power supply provided by the power line 160 is a direct current (DC).
  • the power source control unit 124 may further comprise a DC-AC converting sub-unit for converting voltage supplied of the direct current provided by the power line 160, and providing all the converted voltage to the slave modules 140 and/or signal processing unit 121.
  • FIG. 5 illustrates another embodiment of the present invention of a control circuit 200 includes a bus controller 210 and an intelligent connector 220.
  • bus 250 is a circuit that transmits signals through a power line.
  • bus 250 may be a power line carrier communications circuit or a DC power line communications bus.
  • the signal bus 151 and the power bus 152 shown in Figure 1 are combined into a single circuit.
  • Control circuit 200 does not have to use additional signal circuits for transmitting data signals, which effectively reduces the number of the wires in the electrical appliance.
  • the control circuit 200 utilizes a single circuit for transmitting data signal and power supply between the master control module 230 and the slave module 240, there is no need for the master control module 230 to have a plurality of separate interfaces for connecting with each of the slave modules 240.
  • bus controller 210 and intelligent connector 220 that are coupled to the bus 250 have to be integrated with a unit that is arranged to modulate and/or demodulate signals.
  • This modulation/demodulation (modem) unit can convert the signals provided by the master control module 230 and/or signals provided by the slave modules 240 into a format operable for power line transmission so as to allow the data signals and the power supply to be transmitted through the same bus 250.
  • Figures 6 and 7 respectively illustrate an example of the bus controller 210 and the intelligent connector 220 as shown in Figure 5, the bus controller 210 and the intelligent connector 220 are adapted for the case in which bus 250 is a DC power source line communication bus, i.e. the power supply transmitted by the bus 250 is a direct current, and the signal is modulated in the direct current.
  • bus 250 is a DC power source line communication bus, i.e. the power supply transmitted by the bus 250 is a direct current, and the signal is modulated in the direct current.
  • the bus controller 210 includes a control unit 21 1 and a first modem unit 212, wherein the first modem unit 212 is coupled between the control unit 21 1 and the bus 250 for modulating and/or demodulating signals, i.e. modulating and/or demodulating the control signals from the master control module 230 and/or the feedback signals from the bus.
  • the first modem unit 212 allows both the signal and the power supply to be transmitted through same bus 250.
  • the bus controller 210 can be coupled to the bus 250 through PSI5 ( Peripheral Sensor Interface 5 ) .
  • the intelligent connector 220 includes a signal processing unit 221 , a first port 222, a second port 223 and a second modem unit 224, wherein the second modem unit 224 coupled between the signal processing unit 221 and the first port 222 is arranged to modulate and/or demodulate signals, i.e. modulating and/or demodulating the control signals from the bus 250 and/or the feedback signals from the slave modules 240.
  • the first port 222 can be PSI5 bus interface.
  • FIGs 8 and 9 respectively illustrate another example of the bus controller 210 and the intelligent connector as shown in Figure 5.
  • the bus controller 210 and the intelligent connector are adapted for the bus 250 being a power line carrier communication line, i.e. the power supply transmitted by the bus 250 is an alternating current, and the signal is modulated in the alternating current (AC).
  • AC alternating current
  • the bus controller 210 includes a control unit 211 , a first modem unit 212 and a first coupling unit 213, wherein the first modem unit 212 and the first coupling unit 213 are connected in series between the control unit 21 1 and bus 250.
  • the first modem unit 212 is arranged to modulate and/or demodulate signals.
  • the first coupling unit 213 is coupled with the first modem unit 212 for communication of the modulated signals between the first modem unit 212 and the bus 250.
  • the intelligent connector 220 includes a signal processing unit 221, a first port 222, a second port 223, a second modem unit 224 and a second coupling unit 225, wherein the second modem unit 224 is coupled to the signal processing unit 221 for signal modulation and/or demodulation.
  • the second coupling unit 225 is coupled between the second modem unit 224 and the first port 222 for communication of the modulated signals between the second modem unit 224 and the bus 250.
  • the first modem unit 212 and the second modem unit 224 as shown in Figures 6 to 9 performs signal modulation and/or demodulation by using carrier modulation technology, such as Orthogonal Frequency Division Multiplexing. It can be understood that, in some examples, the slave module 240 may not feed signals back to the master control module 230. Accordingly, the first modem unit 212 includes a modulator for modulating the control signal, and the second modem unit 224 includes a demodulator for demodulating the modulated control signal. In other examples, the slave module 240 may feed signals back to the master control module 230. Accordingly, the second modem unit 212 may further comprise a modulator for modulating the feedback signals, and the first modem unit 224 may further include a demodulator for demodulating the modulated feedback signal.
  • carrier modulation technology such as Orthogonal Frequency Division Multiplexing.
  • the signal coupling of the bus 250 with the first coupling unit 213 and the second coupling unit 225 can be achieved through a capacitive coupling circuit or inductive coupling circuit structure.
  • Figure 10 illustrates an example of the first coupling unit 213 and the second coupling unit 225.
  • the coupling unit is coupled to the bus 250 through transformer 261 and coupling capacitor 262.
  • the transformer 261 may isolate the voltage with large amplitude on the bus 250 from other parts of the coupling unit.
  • the coupling capacitor 262 and the secondary coil of the transformer 261 form a high-pass filter for filtering and eliminating the interference of the frequency of the AC (50 or 60Hz) from the bus 250.
  • the secondary coil of the transformer 261 is coupled to an input of a first operational amplifier 263, and the other input of the operational amplifier 263 is coupled to the reference inductance 264.
  • the operational amplifier 263 amplifies the signal difference between its two inputs and outputs the signal difference to the corresponding modem unit.
  • the coupling unit further includes a second operational amplifier 265, wherein the input of this operational amplifier 265 receives the modulated control signal and the output of this operational amplifier 265 is coupled to the primary coil of the transformer 261 through a coupling capacitor 269 so as to provide control signals to the bus 250 through the transformer 261.
  • the output of the second operational amplifier 265 is further coupled with clamping diodes 266, 267 in series. Clamping diodes 266, 267 are arranged to provide surge protection, i.e. to protect the second operational amplifier 265 being damaged by an instantaneous high-voltage pulse.
  • One end of the clamping diodes 266 is coupled to the reference electric potential through a shunt capacitor 268.
  • the coupling unit shown in Figure 10 only illustrates an exemplary circuit structure for the first coupling unit 213 and the second coupling unit 225.
  • the first coupling unit 213 and the second coupling unit 225 can have other circuit structures according to different embodiments so as to couple the modem unit with the bus.
  • different slave modules may require power supply with different magnitudes of voltage.
  • the voltage of the power required by modules with smaller rated working power such as sensors may be far smaller than that required by modules with higher rated working power such as radiators or heaters.
  • the bus 250 may comprise multiple bus branches wherein each bus branch may provide power with different magnitudes of voltage. These bus branches can be respectively coupled to different intelligent connector 220 and to the same bus controller 210.
  • each intelligent connector 220 in the control circuit 200 is further coupled between a slave module 240 and a bus branch.
  • the intelligent connector 220 can still utilize the intelligent connector structure as shown in Figure 10.
  • the bus controller 210 needs to be coupled with multiple bus branches, its structure may differ from the bus controller structure as shown in Figure 9.
  • Figure 11 illustrates another example of the bus controller shown in
  • the bus controller contains a control unit 211 , a first modem unit 212 and a first coupling unit 213 wherein the first coupling unit 213 includes multiple coupling sub-units 214.
  • Each of the coupling sub-unit 214 is coupled to a bus branch, so as to communicate with and supply power to the intelligent connector coupled to the bus branch through the bus branch.
  • the bus controller further includes a multiplexing unit 215 having multiple data signal channels.
  • the multiplexing unit 215 is coupled between the control unit 21 1 and the first modem unit 212 for selecting one of the multiple data signal channels for communicating signals between the first modem unit 212 and the control unit 21 1 , and thereby facilitating the communication between the slave modules coupled to the different bus branches and the master control module.
  • the multiplexing unit 215 may receive a selection signal from the master control module for switching the data signal channel.
  • the multiplexing unit 215 is arranged to switch the data signal channel, only one modem unit 212 is required for the bus controller.
  • This modem unit 212 is shared by the multiple coupling sub-units 214 in the first coupling unit 213. This can reduce the use of modem units in the bus controller and hence reduces hardware costs.
  • each coupling sub-unit 214 in the first coupling unit 213 may contain a primary coil and a secondary coil. Each of the secondary coils of the coupling sub-units is respectively coupled to a bus branch through a coupling capacitor.
  • the first coupling unit 213 may contain a secondary coil, and each of the coupling sub-units 214 contains a secondary coil, and the multiple coupling sub-units 214 share the primary coil, wherein each secondary coil is respectively coupled to a bus branch through a coupling capacitor.
  • Such a coupling unit further reduces the use of coil and hence further reduces hardware costs.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Programmable Controllers (AREA)
  • Bus Control (AREA)
  • Small-Scale Networks (AREA)

Abstract

L'invention concerne un connecteur intelligent et un contrôleur de bus. Le connecteur intelligent est utilisé pour coupler un bus avec au moins un module esclave dans un appareil électrique. Le connecteur intelligent contient une unité de traitement de signaux pour communiquer des signaux entre le bus et les modules esclaves, traiter les signaux communiqués, et répondre à un signal de commande du bus lorsque le signal de commande reçu a la même adresse qu'une adresse de l'unité de traitement de signaux; un premier port couplé entre le bus et l'unité de traitement de signaux pour communiquer les signaux entre le bus et l'unité de traitement de signaux, le premier port étant également couplé à une ligne d'alimentation pour recevoir l'alimentation électrique; et un second port couplé entre l'unité de traitement de signaux et les modules esclaves pour transmettre des signaux entre ceux-ci, le second port étant également agencé pour fournir l'alimentation électrique aux modules esclaves.
EP13737230.6A 2012-07-16 2013-07-15 Connecteur intelligent et contrôleur de bus Withdrawn EP2873198A1 (fr)

Applications Claiming Priority (2)

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CN201210246232.6A CN103368015B (zh) 2012-04-10 2012-07-16 智能连接器与总线控制器
PCT/EP2013/064887 WO2014012882A1 (fr) 2012-07-16 2013-07-15 Connecteur intelligent et contrôleur de bus

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EP2873198A1 true EP2873198A1 (fr) 2015-05-20

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EP (1) EP2873198A1 (fr)
JP (1) JP6226980B2 (fr)
KR (1) KR20150038117A (fr)
BR (1) BR112015000842A2 (fr)
WO (1) WO2014012882A1 (fr)

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CN107991945A (zh) * 2017-12-29 2018-05-04 广东海信家电有限公司 一种家用电器控制方法及装置
CN108873753A (zh) * 2018-08-03 2018-11-23 安徽合力股份有限公司 一种手柄总线模块控制器
CN109017626B (zh) * 2018-09-30 2024-01-30 合肥一通电子技术有限公司 一种车载局部网络系统
DE102019002119B4 (de) * 2019-03-25 2020-06-10 Inova Semiconductors Gmbh Ansteuern von Ausführungseinheiten

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JP6226980B2 (ja) 2017-11-08
BR112015000842A2 (pt) 2017-06-27
WO2014012882A1 (fr) 2014-01-23
KR20150038117A (ko) 2015-04-08
JP2015531110A (ja) 2015-10-29

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