Induction heating power supply, data collection system and induction heating system communicating on induction heating cable

Abstract

Disclosed are an induction heating power supply, a data collection system, and an induction heating system that communicate over an induction heating cable. An example induction heating power supply includes: a power conversion circuit configured to convert input power into induction heating power and transmit the induction heating power via the induction heating cable; and at least one of a receiver circuit or a transmitter circuit, wherein the receiver circuit is coupled to the induction heating cable and configured to receive data via the induction heating cable, and the transmitter circuit is coupled to the induction heating cable and configured to transmit data via the induction heating cable.

Description

[0001] This application is a divisional application of an invention patent application with an application date of July 24, 2017, an international application number of PCT / US2017 / 043509, a national application number of 201780062445.4, and an invention name of "Induction heating power supply, data collection system and induction heating system communicating on an induction heating cable". Technical Field

[0002] The present invention relates generally to induction heating and, more particularly, to induction heating power supplies, data collection systems, and induction heating systems that communicate over induction heating cables. Summary of the invention

[0003] An induction heating power supply, a data collection system and an induction heating system communicating over an induction heating cable are disclosed, substantially as illustrated in and described in conjunction with at least one of the accompanying drawings, and as more fully set forth in the claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0004] Figure 1 An example induction heating system according to some aspects of the present disclosure is shown.

[0005] Figure 2 yes Figure 1 A circuit schematic of an example embodiment of an induction heating system.

[0006] Figure 3 Another example induction heating system according to some aspects of the present disclosure is shown.

[0007] Figure 4 is a block diagram of another example heating system, wherein the example heating system includes a heating power supply having a transceiver circuit and a data collection device including the transceiver circuit.

[0008] Figure 5 is a block diagram of another example heating system, wherein the example heating system includes a heating power supply having a transmitter circuit and a data collection device including a receiver circuit and a control circuit. DETAILED DESCRIPTION

[0009] As used herein, the term "port" refers to one or more terminals, connectors, plugs, and / or any other physical interface for interfacing with one or more inputs and / or outputs. Example ports include: welding cable connectors, where the welding cable is physically attached to the device; gas hose connectors, which can make physical and / or electrical connections to input and / or output electrical signals and / or electricity, physical force and / or work, fluids and / or gases.

[0010] As used herein, the term "induction heating power" means AC power that is capable of inducing a current in a workpiece when flowing through appropriately arranged cables so as to heat the workpiece by magnetic induction.

[0011] As used herein, "circuitry" includes any analog and / or digital components, power and / or control elements, such as microprocessors, digital signal processors (DSPs), software, etc., discrete and / or integrated components, or some portion and / or combination thereof.

[0012] The disclosed example induction heating power supply includes: a power conversion circuit configured to convert input power into induction heating power and transmit the induction heating power via an induction heating cable; and at least one of a receiver circuit or a transmitter circuit, wherein the receiver circuit is coupled to the induction heating cable and configured to receive data via the induction heating cable, and the transmitter circuit is coupled to the induction heating cable and configured to send data via the induction heating cable.

[0013] Some example induction heating power supplies also include a control circuit configured to control the power conversion circuit to modify the induction heating power based on data. In some examples, the data includes at least one of the following: ambient temperature at a workpiece heated by the induction heating cable, a temperature of the induction heating cable, a temperature of a sheath in contact with the induction heating cable, a temperature of the workpiece, a coolant temperature, a coolant pressure, a coolant flow rate, a current measurement of a current flowing through the induction heating cable, a voltage measurement of a voltage at the induction heating cable, an error signal, or a control signal. In some examples, the data includes at least one of the following: a workpiece identification, an induction heating cable identification, an operator identification, date information, time information, geographic information, a cable fixture identification, or an operator input.

[0014] In some examples, the receiver circuit and / or the transmitter circuit includes at least one of a high pass filter circuit or a band pass filter circuit that attenuates the induction heating power. In some examples, the receiver circuit and / or the transmitter circuit includes a low pass filter circuit that attenuates the induction heating power. Some example induction heating power supplies also include an isolation circuit that selectively electrically isolates the receiver circuit and / or the transmitter circuit based on whether the induction heating power is flowing through the induction heating cable.

[0015] Some examples also include an antenna configured to receive data from the induction heating cable, the receiver circuit including a radio receiver that wirelessly receives data via the antenna. Some examples also include a data storage device configured to store data as the data is received at the receiver circuit. Some such examples also include a second transmitter circuit that transmits the stored data.

[0016] In some examples, when the induction heating power is not output through the induction heating cable, the power conversion circuit outputs a pulse through the induction heating cable, and the receiver circuit is configured to receive data through the induction heating cable in response to the pulse. In some examples, the power conversion circuit provides the induction heating power through the induction heating cable in a first time period, reduces or removes the induction heating power in a second time period after the first time period, and provides the induction heating power through the induction heating cable during a third time period after the second time period. The receiver circuit receives data during the second time period.

[0017] The disclosed example induction heating data collection device includes a transmitter circuit that transmits induction heating data over an induction heating cable via an AC signal at a frequency different than an induction heating current frequency, and a coupling circuit that couples the transmitter circuit to the induction heating cable.

[0018] In some examples, the coupling circuit includes a current transformer magnetically coupled to the induction heating cable or a cable tap that couples the coupling circuit in parallel with the inductance of the workpiece heated by the induction heating cable. Some example induction heating data collection devices also include a filter circuit between the transmitter circuit and the coupling circuit for attenuating the induction heating current frequency. Some example induction heating data collection devices also include an energy storage device that provides power to the transmitter circuit when the induction heating power is not transmitted by the induction heating cable. Some such examples also include a power extraction circuit that extracts power from the induction heating cable via the coupling circuit to charge the energy storage device.

[0019] Some example induction heating data collection devices also include a power extraction circuit that extracts power from the induction heating cable via a coupling circuit and provides the power to the transmitter circuit. Some examples also include at least one of the following: a sensor digitizer for receiving data from at least one of a temperature sensor, a coolant pressure sensor, a coolant flow sensor, or a position sensor; a data reader for reading an identification; or a user interface for receiving data. Some example induction heating data collection devices also include a receiver circuit that receives second data via the induction heating cable.

[0020] Some example induction heating systems include an induction heating cable, an induction heating data collection device, and an induction heating power supplier. The induction heating cable delivers induction heating power to the workpiece according to the arrangement of the induction heating cable close to the workpiece. The induction heating data collection device is inductively coupled to the induction heating cable close to the workpiece, collects induction heating data corresponding to the induction heating power delivered to the workpiece via the induction heating cable, and transmits the induction heating data via the inductive coupling and the induction heating cable. The induction heating power supplier outputs the induction heating power via the induction heating cable and receives the induction heating data.

[0021] In some examples, the induction heating data includes an ambient temperature at the workpiece, a temperature of the induction heating cable, a temperature of a sheath in contact with the induction heating cable, a temperature of the workpiece, a coolant temperature, a coolant pressure, a coolant flow rate, a current measurement of a current flowing through the induction heating cable, and / or a voltage measurement of a voltage at the induction heating cable, and the induction heating power supply records the induction heating data in a storage device.

[0022] In some examples, the induction heating power supply transmits the induction heating data to the server. In some examples, the induction heating data collection device draws power from the induction heating cable. In some examples, the induction heating power supply further includes a second transmitter circuit that sends second data via the induction heating cable, and the induction heating data collection device further includes a second receiver circuit that receives the second data via the induction heating cable.

[0023] Figure 1 An example induction heating system 100 is shown. Figure 1 The example induction heating system 100 includes an induction heating power supply 102, an induction heating cable 104, and a data collection device 106. The induction heating power supply 102 heats the workpiece 108 by transmitting induction heating power to the workpiece 108 via the induction heating cable 104, wherein the induction heating cable 104 is arranged close to the workpiece 108 to induce current in the workpiece 108 from the current in the induction heating cable 104 via magnetic induction.

[0024] The induction heating power supply 102 supplies induction heating power to the workpiece 108 and receives data from the data collection device 106, both of which are completed via the induction heating cable 104. The induction heating power supply 102 includes a power conversion circuit 110, a receiver circuit 112, a filter circuit 114, a control circuit 116, a transmitter circuit 118, and a storage device 120.

[0025] The example power conversion circuit 110 converts the input power 122 into induction heating power and transmits the induction heating power via the induction heating cable 104. For example, the power conversion circuit 110 may receive utility power and / or generator power, convert the input power 122 to a frequency suitable for heating a particular type of workpiece 108, and transmit the power via the induction heating cable 104. The induction heating cable 104 includes one or more conductors for conducting an electric current, wherein the one or more conductors may be arranged proximate to a workpiece to heat the workpiece by induction.

[0026] The receiver circuit 112 is coupled to the induction heating cable 104 and is configured to receive data via the induction heating cable 104. As disclosed in more detail below, the power conversion circuit 110 outputs the induction heating power at a first frequency, and the receiver circuit 112 receives the data at a second frequency different from the first frequency. In order to separate the data from the induction heating power, the induction heating power supply 102 includes a filter circuit 114 that attenuates the induction heating power. The filter circuit 114 can be a high pass filter and / or a band pass filter for data signals that are substantially higher than the induction heating power frequency. The filter circuit 114 can be a low pass filter for data signals that are substantially lower than the induction heating power frequency.

[0027] Although the example filter circuit 114 is shown as being directly coupled to the induction heating cable 104 in parallel with the workpiece 108, in other examples, the filter circuit 114 is directly coupled in series with the induction heating cable 104, inductively coupled to the induction heating cable 104, wirelessly coupled to the induction heating cable 104, and / or directly connected to the induction heating cable 104.

[0028] The control circuit 116 controls the power conversion circuit 110 to modify the induction heating power based on the data received by the receiver circuit 112. For example, the data may include one or more of the following: the ambient temperature at the workpiece 108 heated by the induction heating cable 104 (e.g., the temperature of the immediate local environment, such as the air temperature surrounding the workpiece 108), the temperature of the induction heating cable 104, the temperature of the sheath in contact with the induction heating cable 104, the temperature of the workpiece 108, the measurement of the current flowing through the induction heating cable 104, the voltage measurement of the voltage at the induction heating cable 104 (e.g., the voltage across the portion of the induction heating cable 104 that is inductively coupled to the workpiece 108), and / or an error signal. Additionally or alternatively, when the induction heating cable 104 is a water-cooled cable, the data may include one or more of the following: the temperature of the coolant flowing through the induction heating cable 104, the coolant pressure, and / or the coolant flow rate. In some instances, the data may include one or more of: workpiece identification, induction heating cable identification, operator identification, date information, time information, geographic information, cable fixture identification, and / or any type of operator or user input entered at the data collection device 106.

[0029] As used herein, "cladding" refers to the insulating layer that covers the insulated heating cable and protects the cable. As used herein, the term "identification" may include a serial number, model number, or any other identification value, and may be represented as a quick read (QR) code, a barcode, a human readable number, a radio frequency identification (RFID) tag, and / or any other machine readable marking.

[0030] The control circuit 116 may control the power conversion circuit 110 based on the data to, for example, increase and / or decrease the induction heating power output, stop and / or start the induction heating power output, modify the frequency of the induction heating power output and / or perform any other control or modification.

[0031] The transmitter circuit 118 transmits some or all of the received data to, for example, a local or remote storage device, a local or remote server, and / or any other device. An example receiving end for the transmission of data may be, for example, a computer or a server configured with Insight(R) software sold by Miller Electric(R). In addition or alternatively, the storage device 120 stores the received data for later retrieval and / or transmission by the transmitter circuit 118. The example transmitter circuit 118 may include a wireless communication transmitter (e.g., cellular, long term evolution (LTE), WiFi, Bluetooth(R), etc.) and / or a wired communication transmitter (e.g., Ethernet, CAN, USB, etc.). The example storage device 120 may be an integrated storage device (e.g., a hard disk, a solid state storage device, or a memory device) or a removable storage device (e.g., a USB drive or other connected storage device).

[0032] The example transmitter circuit 118 and the example receiver circuit 112 may communicate using any suitable modulation scheme. For example, the transmitter circuit 118 and the example receiver circuit 112 may communicate using orthogonal frequency division multiplexing (OFDM), quadrature amplitude modulation (QAM), frequency shift keying, and / or any other analog, digital, and / or spread spectrum modulation schemes and / or any combination of modulation schemes. Example techniques that may be implemented by the transmitter circuit 118 and / or the receiver circuit 112 are described by Yonge et al. in “An Overview of the HomePlug AV2 Technology,” Journal of Electrical and Computer Engineering, Vol. 2013, the entire contents of which are incorporated herein by reference. However, the transmitter circuit 118 or the receiver circuit 112 may use other techniques.

[0033] The example induction heating data collection device 106 includes an induction data framer 124 , a transmitter circuit 126 , a coupling circuit 128 , a power extraction circuit 130 , an energy storage device 132 , a sensor digitizer 134 , a data reader 136 , and a user interface 138 .

[0034] The induction data framer 124 frames the induction heating data for transmission via the induction heating cable 104. The induction heating data may be generated from sensor data collected by one or more sensors 140 and converted to digital data via a sensor digitizer 134, received from a data reader 136 and / or input by a user or operator via a user interface 138. Example sensors 140 may include temperature sensors (e.g., thermocouples, thermistors, resistive temperature devices, infrared sensors, etc.), coolant pressure sensors or coolant flow sensors, and / or position sensors. Example induction heating data includes one or more of the following: ambient temperature at a workpiece 108 heated by the induction heating cable 104, temperature of the induction heating cable 104, temperature of a sheath in contact with the induction heating cable 104, temperature of the workpiece 108, a measurement of current flowing through the induction heating cable 104, a measurement of voltage at the induction heating cable 104 (e.g., voltage across the portion of the induction heating cable 104 that is inductively coupled to the workpiece 108), an error signal, temperature of a coolant flowing through the induction heating cable 104, coolant pressure, coolant flow rate, workpiece identification, induction heating cable identification, operator identification, date information, time information, geographic information, cable fixture identification, and / or any type of operator or user input entered at the data collection device 106.

[0035] The example data reader 136 may be, for example, an RFID reader, a barcode scanner, a QR code scanner, and / or any other type of data reader 136. The example user interface 138 may include any type of user interface device, such as, for example, selection buttons, switches, a dial, a numeric keypad, a touch screen, and / or any other type of user interface device.

[0036] The example transmitter circuit 126 transmits induction heating data via an AC signal using a frequency different from the frequency of the induction heating current on the induction heating cable 104 (e.g., output by the induction heating power supply 102). The example transmitter circuit 126 is coupled to the induction heating cable 104 via a coupling circuit 128 and a filter circuit 142. The filter circuit 142 enables the frequency transmitted by the transmitter circuit 126 to be output to the coupling circuit 128 while attenuating the frequency of the induction heating power. Figure 1 The example coupling circuit 128 includes a current transformer magnetically coupled to the induction heating cable 104 .

[0037] The power extraction circuit 130 extracts power from the induction heating cable 104 via the coupling circuit 128 to power the transmitter circuit 126, the induction data framer 124, the sensor digitizer 134, the data reader 136, and / or the user interface 138 and / or to charge the energy storage device 132. The example energy storage device 132 provides power to the transmitter circuit 126, the induction data framer 124, the sensor digitizer 134, the data reader 136, and / or the user interface 138 when the power extraction circuit 130 is unable to power these components. The example energy storage device 132 may include one or more batteries, one or more capacitors, and / or any other type of energy storage device.

[0038] In some examples, the data collection device 106 may be powered by the induction heating power supply 102 to enable the data collection device 106 to collect and / or transmit data when the induction heating power is not applied to the induction heating cable 104. The power conversion circuit 110 may output pulses via the induction heating cable 104 to power the data collection device 106. After outputting the pulses, the power conversion circuit 110 cuts off the power, and the receiver circuit 112 receives the data transmitted from the data collection device via the induction heating cable 104 in response to the pulses.

[0039] In some examples, the induction heating power supply 102 provides intermittent power to heat the workpiece 108, and receives data at the receiver circuit 112 when power is not provided. In some such examples, communication occurs only when the induction heating power supply 102 does not output induction heating power, and the control circuit 116 implements logic to connect the receiver circuit 102 or enable the receiver circuit 102 to receive communication when the power supply 102 does not provide heating power. For example, the power conversion circuit 110 outputs induction heating power via the induction heating cable 104 during a first time period, reduces or removes the induction heating power during a second time period after the first time period, and outputs the induction heating power again during a third time period after the second time period, and so on. The receiver circuit 112 receives data during the second time period. In some examples, instead of or in addition to including a filter circuit 114 that couples the receiver circuit 112 to the induction heating cable 104, the induction heating power supply 102 also includes a relay, a contactor, or another type of isolation device that selectively connects and disconnects the receiver circuit 112 from the induction heating cable 104. The control circuit 116 coordinates the power conversion circuit 110 and the isolation device to connect the receiver circuit 112 when the power conversion circuit 110 does not output the induction heating power and disconnect the receiver circuit 112 when the power conversion circuit 110 outputs the induction heating power.

[0040] In contrast, the example heating power supply 102 may be configured to enable and / or connect the receiver circuit 112 to receive data when the induction heating power supply 102 is outputting induction heating power, and the control circuit 116 implements logic to disconnect and / or disable the receiver circuit 102 when the power supply 102 is not providing heating power.

[0041] Figure 2 yes Figure 1 1 is a circuit schematic of an example embodiment of an induction heating system 100 . Figure 2 The illustrated circuit schematic includes example implementations or representations of the filter circuit 114 , the induction heating cable 104 , the transmitter circuit 126 , the filter circuit 142 , the power extraction circuit 130 , and the coupling circuit 128 .

[0042] Figure 3 Another example induction heating system 300 is shown. Figure 1 Compared with the example system 100, Figure 3 The system 300 forms one or more cable taps 302 in the coupling circuit 128 to couple the transmitter circuit 126 in parallel with the inductance of the workpiece 108 being heated by the induction heating cable 104 .

[0043] exist Figure 1 and / or Figure 3 In an example of operation of the system 100, 300, the control circuit 116 enables the power conversion circuit 110 to output the induction heating power via the induction heating cable 104 at a first frequency to heat the workpiece 108. As the induction heating power flows through the induction heating cable 104, the example power extraction circuit 130 extracts a portion of the induction heating power to power the induction data framer 124, the transmitter circuit 126, the sensor digitizer 134, the data reader 136 and / or the user interface 138 and / or the energy storage device 132. The sensor digitizer 134 digitizes a signal received from the sensor 140 (e.g., a voltage signal from a thermocouple that measures the temperature of the workpiece 108 when the workpiece 108 is heated) and provides the signal to the transmitter circuit 126. The transmitter circuit 126 transmits data from the sensor digitizer 134 at a frequency different from the frequency of the induction heating power. For example, the transmitter circuit 126 may transmit data at a frequency several orders of magnitude higher than the frequency of the induction heating power. The filter circuit 114 allows the transmitted data to be received at the receiver circuit 112, where the receiver circuit 112 reads the data from the induction heating cable 104. The receiver circuit 112 may store the data in a storage device 120, provide the data to the transmitter circuit 118 for transmission to a data collection server (or another device), and / or provide the data to the control circuit 116 for controlling the induction heating.

[0044] In some instances, Figure 1 and / or Figure 3 The data collection device 106 may be powered by the induction heating power supply 102 to enable the data collection device 106 to collect and / or transmit data when the induction heating power is not applied to the induction heating cable 104. The power conversion circuit 110 may output pulses via the induction heating cable 104 to power the data collection device 106. After outputting the pulses, the power conversion circuit 110 turns off the power, and the receiver circuit 112 receives the data transmitted from the data collection device via the induction heating cable 104 in response to the pulses.

[0045] In some examples, the induction heating power supply 102 provides intermittent power to heat the workpiece 108, and receives data at the receiver circuit 112 when power is not provided. For example, the power conversion circuit 110 outputs the induction heating power via the induction heating cable 104 in a first time period, reduces or removes the induction heating power in a second time period after the first time period, and outputs the induction heating power again during a third time period after the second time period, and so on. The receiver circuit 112 receives data during the second time period. In some examples, instead of or in addition to including a filter circuit 114 that couples the receiver circuit 112 to the induction heating cable 104, the induction heating power supply 102 also includes a relay, a contactor, or another type of isolation device that selectively connects and disconnects the receiver circuit 112 from the induction heating cable 104. The control circuit 116 coordinates the power conversion circuit 110 and the isolation device to connect the receiver circuit 112 when the power conversion circuit 110 does not output the induction heating power and disconnect the receiver circuit 112 when the power conversion circuit 110 outputs the induction heating power.

[0046] Figure 4 4 is a block diagram of another example heating system 400, wherein the example heating system 400 includes a heating power supply 402 having a transceiver circuit 404 and a data collection device 406 including a transceiver circuit 408. The example heating power supply 402 includes the power conversion circuit 110, the filter circuit 114, the control circuit 116, the transmitter circuit 118 and / or the storage device 120 as described above. The example data collection device 406 includes Figure 1 and / or Figure 3 The sensor data framer 124, the power extraction circuit 130, the energy storage device 132, the sensor digitizer 134, the data reader, the user interface 138 and / or the filter circuit 142.

[0047] and Figure 1 and Figure 3Compared to the example heating power supply 102 of FIG. 4 , the heating power supply 402 is also capable of transmitting data to the data collection device 406 via the induction heating cable 104 (e.g., two-way communication between the heating power supply 402 and the data collection device 406). In addition to the example data transmitted by the data collection device to the heating power supply 402 via the induction heating cable 104, the heating power supply 402 may also transmit data such as control or configuration data to the data collection device 406 for implementation by the control circuit 410 at the data collection device 406. In addition or alternatively, the heating power supply 402 may transmit handshake information for negotiating a connection with the data collection device 406.

[0048] Figure 5 5 is a block diagram of another example heating system 500, wherein the example heating system 500 includes a heating power supply 502 having a transmitter circuit 504 and a data collection device 506 including a receiver circuit 508 and a control circuit 510. The example transmitter circuit 504 may be similar to or the same as Figure 1 and / or Figure 3 506. In contrast, the receiver circuit 508 may be similar to or identical to the transmitter circuit 126 of FIG. 506, but implemented in the heating power supply 502 to transmit control and / or configuration information to the data collection device 506. Figure 1 and / or Figure 3 The receiver circuit 112 of FIG. 5 is not implemented in the data collection device 506 but is implemented in the data collection device 506 to receive data from the heating power supply 502 via the induction heating cable 104 .

[0049] Figure 4 and / or Figure 5 The example systems 400 and 500 can be described in detail with reference to the above. Figure 1 , Figure 2 and / or Figure 3 Modify by any of the modifications discussed.

[0050] Although the above examples are described with reference to induction heating, these examples can be modified for use with resistive heating, in which a heating cable provides power to a heating element (or acts as a heating element) which is electrically connected to the heating element via an I 2 R generates heat to be heated and thermally coupled to the workpiece to be heated. The examples described above can be modified to communicate via a resistive heating cable based on applying heating power and / or heating frequency in the heating cable.

[0051] As used herein, the term "circuit" means physical electronic components (i.e., hardware) and any software and / or firmware ("code") that can configure hardware, is executed by hardware, and / or is otherwise associated with hardware. As used herein, for example, a specific processor and memory may constitute a first "circuit" when executing a first line or more lines of code, and may constitute a second "circuit" when executing a second line or more lines of code. As used herein, "and / or" means any one or more of the items in the list joined by "and / or". As an example, "x and / or y" means any one of the three-element set {(x), (y), (x, y)}. In other words, "x and / or y" means "one or both of x and y". As another example, "x, y and / or z" means any one of the seven-element set {(x), (y), (z), (x, y), (x, z), (y, z), (x, y, z)}. In other words, "x, y and / or z" means "one or more of x, y and z". As used herein, the term "exemplary" means serving as a non-limiting example, instance, or illustration. As used herein, the term "for example" cites a list of one or more non-limiting examples, instances, or illustrations. As used herein, a circuit is "operable" to perform a function so long as the circuit includes the necessary hardware and code (if necessary) for performing the function, regardless of whether performance of the function is disabled or not enabled (e.g., by user-configurable settings, factory trims, etc.).

[0052] Although the method and / or system of the present invention has been described with reference to certain embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the scope of the method and / or system of the present invention. In addition, many modifications may be made to adapt specific situations or materials to the teachings of the present disclosure without departing from the scope of the present disclosure. For example, the blocks and / or components of the disclosed examples may be combined, divided, rearranged and / or otherwise modified. Therefore, the method and / or system of the present invention is not limited to the specific embodiments disclosed. In fact, the method and / or system of the present invention will include all embodiments that fall within the scope of the appended claims, both literally and according to the doctrine of equivalents.

Claims

1. An induction heating data collection device, comprising: a transmitter circuit for transmitting induction heating data over the induction heating cable via an alternating current signal at a frequency different from the induction heating current frequency; a coupling circuit for inductively coupling the transmitter circuit to the induction heating cable; as well as A power extraction circuit is configured to extract power from the induction heating cable to power the transmitter circuit and / or charge an energy storage device, wherein the transmitter circuit and the power extraction circuit are inductively coupled to the induction heating cable via the coupling circuit.

2. The induction heating data collection device of claim 1 , wherein the coupling circuit comprises a current transformer configured to magnetically couple to the induction heating cable or a cable tap coupling the coupling circuit in parallel with the inductance of a workpiece heated by the induction heating cable. 3 . The induction heating data collection device according to claim 1 , further comprising a filter circuit for attenuating the induction heating current frequency between the transmitter circuit and the coupling circuit.

4. The induction heating data collection device of claim 1, further comprising an energy storage device for providing power to the transmitter circuit when induction heating power is not transmitted through the induction heating cable.

5. The induction heating data collection device according to claim 1, further comprising at least one of the following: a sensor digitizer for receiving data from at least one of a temperature sensor, a coolant pressure sensor, a coolant flow sensor, or a position sensor; a data reader for reading the identification; or A user interface is used to receive the data. 6 . The induction heating data collection device according to claim 1 , further comprising a receiver circuit, wherein the receiver circuit receives second data via the induction heating cable.

7. An induction heating system comprising: an induction heating cable configured to deliver induction heating power to a workpiece based on placement of the induction heating cable proximate to the workpiece; an induction heating data collection device inductively coupled to the induction heating cable proximate the workpiece, the induction heating data collection device being configured to: extracting power from the induction heating cable via inductive coupling with the induction heating cable; corresponding to delivering the induction heating power to the workpiece via the induction heating cable, collecting induction heating data using the extracted power; transmitting the induction heating data via the inductive coupling and the induction heating cable using the extracted power; as well as An induction heating power supplier is configured to output the induction heating power via the induction heating cable and receive the induction heating data.

8. The induction heating system of claim 7, wherein the induction heating data comprises at least one of the following: an ambient temperature at the workpiece, a temperature of the induction heating cable, a temperature of a sheath in contact with the induction heating cable, a temperature of the workpiece, a coolant temperature, a coolant pressure, a coolant flow rate, a current measurement of a current flowing through the induction heating cable, or a voltage measurement of a voltage at the induction heating cable, and the induction heating power supply is configured to record the induction heating data in a storage device. 9 . The induction heating system of claim 8 , wherein the induction heating power supply is configured to transmit the induction heating data to a server.

10. The induction heating system of claim 7, wherein the induction heating data collection device is configured to draw power from the induction heating cable.

11. The induction heating system of claim 7, wherein the induction heating power supply further comprises a second transmitter circuit that transmits second data via the induction heating cable, and wherein, The induction heating data collection device also includes a second receiver circuit that receives the second data via the induction heating cable.

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