Connection detection system, device and method for connection structure

Abstract

The present invention relates to a connection detection system, device and method for a connection structure, which can automatically detect when a first device is attached to a second device, and further can identify the first device. The present invention discloses a connection detection system, which is composed of a first device and a second device, wherein the first device has: a first connection terminal having a 1-1 contact and a 1-2 contact; and a first reactance element connected to the first connection terminal; and the second device has: a second connection terminal having a first contact corresponding to the 1-1 contact and the 1-2 contact. The invention comprises the following aspects: a 2-1 contact and a 2-2 contact; a first resistor element; a first frequency generator, which applies a signal whose frequency changes within a predetermined range to the first device via the first resistor element and through the second connecting terminal; a first comparator, whose two input terminals are connected to the two ends of the first resistor element, and compares the signals at the two ends of the first resistor element and outputs the comparison; and a first control unit, which uses the output signal of the first comparator to determine whether the first connecting terminal of the first device is connected to the second connecting terminal.

Description

Technical Field

[0001] The present invention relates to a connection detection system, device and method for a connection structure, and more specifically, to a connection detection system, device and method for a connection structure that can automatically detect when a first device is attached to a second device and further identify the first device. Background Art

[0002] Recently, the application scenarios of applicable robotics technology such as logistics / production automation have been rapidly expanding.

[0003] In this regard, there are increasing examples of application of connection structures in which slave devices having multiple functions are attached to a master device such as a robot body so that the slave devices are linked to the master device.

[0004] Furthermore, the use of the connection structure is not limited to the field of robots, but is also widely used in electrical devices.

[0005] However, in the existing connection structure, when the main device cannot recognize whether the slave device is connected and continues to supply power and signals, if the slave device is attached while the connection terminal is supplied with power and signals, noise caused by the connection or sparks may occur at the connection terminal. Furthermore, when a conductive foreign object contacts the connection terminal, the connection terminal may be short-circuited, causing damage to the power circuit of the main device.

[0006] In this regard, a solution can be considered in which a resistor of a predetermined size is provided in the slave device, and when the slave device is connected to the master device, the resistance of the slave device is measured at the connection terminal, and the master device detects whether it is connected to the slave device. However, in this case, when a foreign object with a resistance value similar to that of the resistor contacts the connection terminal, the problem of erroneously judging that the slave device is connected may occur.

[0007] Therefore, in order to improve the problems of the existing connection structure as described above, a solution is needed in which the master device can accurately detect whether the slave device is attached so as to stably supply the power and signals required for the operation of the slave device. However, no appropriate solution has been proposed yet. Summary of the invention

[0008] The present invention is proposed to solve the above-mentioned problems in the prior art, and its purpose is to accurately detect whether a slave device is attached in a master device so as to stably supply power and signals required for the operation of the slave device.

[0009] Another object of the present invention is to identify a slave device in a master device so as to permit connection only to slave devices that are permitted to attach.

[0010] In addition to the above, more detailed objects of the present invention can be clearly grasped and understood by professionals or researchers in the field through the specific contents described below.

[0011] To solve the above technical problems, a connection detection system according to one aspect of the present invention is characterized in that it is constructed to include a first device and a second device, wherein the first device has: a first connection terminal having a 1-1 contact and a 1-2 contact; and a first reactance element connected to the first connection terminal; the second device has: a second connection terminal having a 2-1 contact and a 2-2 contact corresponding to the 1-1 contact and the 1-2 contact; a first resistor element; a first frequency generator that applies a signal whose frequency changes within a predetermined range to the first device via the first resistor element and through the second connection terminal; a first comparator, wherein two input terminals of the first comparator are connected to both ends of the first resistor element, and the signals at both ends of the first resistor element are compared and output; and a first control unit that uses the output signal of the first comparator to determine whether the first connection terminal of the first device is connected to the second connection terminal.

[0012] In addition, according to another aspect of the present invention, a connection detection device detects whether or not a connection is made to a first device, the first device comprising: a first connection terminal comprising a 1-1 contact and a 1-2 contact; and a first reactance element connected to the first connection terminal, characterized in that the connection detection device is configured to include: a second connection terminal comprising a 2-1 contact and a 2-2 contact corresponding to the 1-1 contact and the 1-2 contact; a first resistor element; a first frequency generator, which applies a signal whose frequency changes within a predetermined range to the first device via the first resistor element and through the second connection terminal; a first comparator, the two input terminals of which are connected to the two ends of the first resistor element, and which compares and outputs the signals at the two ends of the first resistor element; and a first control unit, which uses the output signal of the first comparator to determine whether or not the first connection terminal of the first device is connected to the second connection terminal.

[0013] In addition, according to another aspect of the present invention, a connection detection method detects whether a second device is connected to a first device, wherein the first device comprises: a first connection terminal comprising a 1-1 contact and a 1-2 contact; and a first reactance element connected to the first connection terminal, characterized in that the connection detection method comprises: a signal application step, wherein the second device generates a signal whose frequency changes within a predetermined range, and applies the signal to the first device via a first resistor and through a second connection terminal, wherein the second connection terminal comprises a 2-1 contact and a 2-2 contact corresponding to the 1-1 contact and the 1-2 contact; a signal comparison step, wherein the second device compares the signals at both ends of the first resistor; and a connection determination step, wherein the second device determines whether the first connection terminal of the first device is connected to the second connection terminal using the signal comparison result at both ends of the first resistor.

[0014] Therefore, in the connection detection system, device and method involved in one embodiment of the present invention, when the first device is attached to the second device, the second device can accurately detect whether the first device is attached, so that the power and signal required for the operation of the first device can be stably supplied.

[0015] In addition, in the connection detection system, device, and method according to an embodiment of the present invention, the attached first device is recognized in the second device, so that connection can be permitted only for the first device that is permitted to attach. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] To help understand the present invention, the accompanying drawings, which are a part of the detailed description, provide embodiments of the present invention and, together with the detailed description, explain the technical concept of the present invention.

[0017] Figure 1 It is a block diagram of a connection detection system according to an embodiment of the present invention.

[0018] Figure 2 It is a diagram for explaining the configuration and operation of a connection detection system according to an embodiment of the present invention.

[0019] Figure 3 It is a sequence diagram of a connection detection method according to an embodiment of the present invention.

[0020] Figure 4 and Figure 5 It is a diagram for explaining a specific operation of detecting connection with a first device in a connection detection system, device, and method according to an embodiment of the present invention.

[0021] Figure 6a to Figure 6bIt is a diagram showing a specific configuration of a first comparator in a connection detection system, device, and method according to an embodiment of the present invention.

[0022] Figure 7 1 is a diagram showing waveforms in a first implementation example of a first comparator in a connection detection system, device, and method according to an embodiment of the present invention.

[0023] Figures 8a to 8d It is a diagram showing waveforms in a second implementation example of the first comparator in the connection detection system, device, and method according to an embodiment of the present invention.

[0024] Fig. 9 It is a diagram for explaining the configuration and operation of the first device in the connection detection system according to one embodiment of the present invention.

[0025] Fig.10 It is a specific sequence diagram of a connection detection method involved in one embodiment of the present invention.

[0026] Fig.11 It is a block diagram of a connection detection device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0027] The present invention can be modified in many ways and has many embodiments. Specific embodiments will be described below with reference to the accompanying drawings.

[0028] The following embodiments are provided to facilitate an overall understanding of the methods, devices and / or systems described in this specification, but these are merely examples and the present invention is not limited thereto.

[0029] In the description of the embodiments of the present invention, when it is judged that the specific description of the known technology related to the present invention may make the main idea of ​​the present invention unclear, the detailed description thereof is omitted. In addition, the terms described below are terms defined in consideration of the functions in the present invention, and these terms may be different according to the intentions or conventions of the user or operator. Therefore, its definition should be determined based on the entire content of this specification. The terms used in the detailed description are only used to describe the embodiments of the present invention and are not restrictive. As long as there is no clear other usage, the expression in the singular form includes the meaning of the plural form. In this specification, expressions such as "including" or "having" refer to certain characteristics, numbers, steps, actions, elements, parts or combinations of these, and should not be interpreted as excluding one or more other characteristics, numbers, steps, actions, elements, parts or combinations of these other than those described.

[0030] In addition, terms such as "1" and "2" may be used in the description of a plurality of components, but the components are not limited to the terms, and the terms are used only to distinguish one component from another.

[0031] Hereinafter, exemplary implementations of a connection detection system, an apparatus, and a method according to an embodiment of the present invention will be described in sequence with reference to the accompanying drawings.

[0032] First, in Figure 1 , a block diagram showing the configuration of a connection detection system 10 according to an embodiment of the present invention is shown.

[0033] Depend on Figure 1 It can be seen that the connection detection system 10 according to an embodiment of the present invention may be configured to include: a first device 100; and a second device 200 for detecting whether the first device 100 is attached.

[0034] At this time, the first device 100 may be a slave device of a robot, etc., and the second device 200 may be a master device to which the slave device is attached, but the present invention is not necessarily limited thereto. In addition, it can also be widely used in various application scenarios where one device is attached to another device.

[0035] More specifically, by Figure 2 It can be seen that the first device 100 may include: a first connection terminal 110 including a 1-1 contact 111 and a 1-2 contact 112 ; and a first reactance element 120 connected to the first connection terminal 110 .

[0036] In addition, the second device 200 may include: a second connection terminal 210, including a 2-1 contact 211 and a 2-2 contact 212 corresponding to the 1-1 contact 111 and the 1-2 contact 112; a first resistor 220; a first frequency generator 230, applying a signal whose frequency changes within a predetermined range to the first device 100 via the first resistor 220 through the second connection terminal 210; a first comparator 240, two input terminals of which are connected to the two ends of the first resistor 220, so as to compare and output the signals at the two ends of the first resistor 220; and a first control unit 250, which uses the output signal of the first comparator 240 to determine whether the first connection terminal 110 of the first device 100 is connected to the second connection terminal 210.

[0037] At this time, the first comparator 240 may be a phase comparator for comparing the phases of the signals at both ends of the first resistor element 220, so that the first control unit 250 may use the output signal of the phase comparator to determine the first frequency (=f ) at which the phase delay of the signals at both ends of the first resistor element 220 deviates from the predetermined range as the frequency of the first frequency generator 230 increases. C1 ) and then based on the first frequency (=f C1 ) or using the first frequency (=f C1 ) to determine whether the first connecting terminal 110 of the first device 100 is connected to the second connecting terminal 210.

[0038] In addition, in the first control unit 250, when it is determined that the magnitude change of the signal at both ends of the first resistor 220 deviates from the second frequency (=f C2 ) and then, using the second frequency (=f C2 ) to verify the first frequency (=f C1 ) is accurate.

[0039] In addition, the first connection terminal 110 may include a 1-3 contact 113, and the second connection terminal 210 may include a 2-3 contact 213 corresponding to the 1-3 contact 113, so that after the first control unit 250 detects that the first connection terminal 110 and the second connection terminal 210 are connected, it is possible to control the first device 100 to be powered through the 2-3 contact 213. The first power on / off device 260 has an on / off function and supplies power to the load module 130.

[0040] Furthermore, in the first frequency generator 230, the first frequency (=f C1 ) The signal is applied while changing the frequency within a limited range based on the predicted value.

[0041] Therefore, in the connection detection system, device and method involved in one embodiment of the present invention, when the first device 100 is attached to the second device 200, it is accurately detected in the second device 200 whether the first device 100 is attached, so that the power and signal required for the operation of the first device 100 can be stably supplied, and the attached first device 100 can be identified in the second device 200 and the connection is allowed only for the first device 100 that is allowed to attach.

[0042] In addition, Figure 3Detailed description of the invention A sequence diagram of a connection detection method according to an embodiment of the present invention is shown in FIG.

[0043] Depend on Figure 3 It can be seen that the connection detection method involved in an embodiment of the present invention is a method for detecting whether the second device 200 is connected to the first device 100, the first device 100 comprises: a first connection terminal 110 having a 1-1 contact 111 and a 1-2 contact 112; and a first reactance element 120 connected to the first connection terminal 110, the connection detection method may include: a signal application step (S110), the second device 200 generates a signal whose frequency changes within a predetermined range, and applies the signal to the second connection terminal 210 via the first resistor element 220. To the first device 100, wherein the second connecting terminal 210 has a 2-1 contact 211 and a 2-2 contact 212 corresponding to the 1-1 contact 111 and the 1-2 contact 112; a signal comparison step (S120), wherein the second device 200 compares the signals at both ends of the first resistor element 220; and a connection determination step (S130), wherein the second device 200 determines whether the first connecting terminal 110 of the first device 100 is connected to the second connecting terminal 210 using the signal comparison result at both ends of the first resistor element 220.

[0044] Below, refer to Figures 1 to 3 A connection detection system, device, and method according to an embodiment of the present invention will be described in more detail according to the constituent elements.

[0045] First, in the signal applying step (S110), the second device 200 generates a signal whose frequency changes within a predetermined range, and applies the signal to the first device 100 via the first resistor element 220 through the second connecting terminal 210, wherein the second connecting terminal 210 has a 2-1 contact 211 and a 2-2 contact 212 corresponding to the 1-1 contact 111 and the 1-2 contact 112.

[0046] More specifically, by Figure 2 It can be seen that the following circuit is constructed: in the first frequency generator 230 of the second device 200, a signal is generated while changing the frequency within a predetermined range, and the signal is output to the first resistor element 220. The signal passing through the first resistor element 220 is applied to the first reactance element 120 via the 2-1 contact 211 and the 1-1 contact 111, and then transmitted to the first frequency generator 230 again via the 1-2 contact 112 and the 2-2 contact 212.

[0047] At this time, if Figure 2As shown, the first reactance element 120 can be configured as a capacitor, but the present invention is not limited thereto, and can also be configured as an inductor, or configured to include both a capacitor and an inductor, and can also be configured to include a resistor, etc. The following description takes the case where the first reactance element 120 is configured as a capacitor as an example.

[0048] Therefore, by Figure 4 It can be seen that when the frequency of the signal generated by the first frequency generator 230 increases, the following characteristics are exhibited: according to the frequency response characteristics of the RC circuit, the magnitude of the signal is attenuated and the phase of the signal is delayed as the signal passes through the first resistor 220.

[0049] More specifically, the frequency at which the signal is attenuated by 3 dB or the phase is delayed by 45 degrees as the frequency increases is called the cut-off frequency. c ), the cut-off frequency is determined according to the RC time constant of the circuit. Therefore, under the condition that the resistance value of the first resistor element 220 is determined, if the cut-off frequency of the circuit is measured, the capacitance value of the first reactance element 120 can be calculated.

[0050] Thus, in one example of the present invention, when the first frequency generator 230 generates and outputs a signal while changing the frequency, the first comparator 240 measures the magnitude attenuation or phase delay of the signal in the first resistor 220 caused by the frequency change of the signal, and the first control unit 250 uses the first frequency (=f C1 ) and / or the second frequency (=f C2 ) to calculate the capacitance value of the first reactance element 120, and then, whether the first device 100 is attached is determined based on the calculated capacitance value of the first reactance element 120. Furthermore, the type of the attached first device 100 can be identified to determine whether the connection is allowed.

[0051] According to another example, the first frequency generator 230 may generate and output a signal while changing the frequency, the first comparator 240 may measure the magnitude attenuation or phase delay of the signal in the first resistor 220 caused by the frequency change of the signal, and the first control unit 250 may control the first resistor 220 to generate a signal at the first frequency (=f C1 ) and / or the second frequency (=f C2 ) is used as a reference to determine whether the first device 100 is attached. Furthermore, it is also possible to identify the type of the attached first device 100 and determine whether to allow the connection.

[0052] At this time, by Figure 5It can be seen that the cutoff frequency ( Figure 5 (A)), but the cutoff frequency is measured by applying a signal while changing the frequency in the first frequency generator 230 within a limited range based on the cutoff frequency prediction value for the first reactance element 120 ( Figure 5 (B)) can more quickly determine the cutoff frequency. This cutoff frequency prediction value or the limited range based on it ( Figure 5 (B)) can be pre-set by the administrator. Furthermore, multiple frequency ranges can be included in the limited range. For example, when the equipment that can be combined with the second device 200 as the first device 100 is a camera device and a display device, the administrator can also set the aforementioned limited range to include all the frequency ranges (for example, 37 to 57uF) based on the first reactance element value of the camera device (for example, 47uF) and the frequency range (for example, 1 to 20uF) based on the first reactance element value of the display device (for example, 10uF).

[0053] Next, in the signal comparison step ( S120 ), the second device 200 compares the signals at both ends of the first resistor 220 .

[0054] More specifically, by Figure 2 It can be seen that the second device 200 may include a first comparator 240 , and the two input terminals of the first comparator 240 may be connected to the two terminals of the first resistor 220 , and the first comparator 240 may compare the signal of the first resistor 220 and output the result.

[0055] At this time, the first comparator 240 may be a phase comparator for comparing the phases of the signals at both ends of the first resistor element 220, so that the first control unit 250 may use the output signal of the phase comparator to determine the first frequency (=f ) at which the phase delay of the signals at both ends of the first resistor element 220 deviates from the predetermined range as the frequency of the first frequency generator 230 increases. C1 ) (for example, a frequency at which the phase delay is greater than 45 degrees), and using the first frequency (=f C1 ) is used to calculate the element value of the first reactance element 120, thereby being able to determine whether the first connection terminal 110 of the first device 100 is connected to the second connection terminal 210.

[0056] As a more specific example, in Figure 6a to Figure 6b Detailed configuration of the first comparator 240 according to an embodiment of the present invention is shown in FIG.

[0057] First, by Figure 6aIt can be seen that the first comparator 240 can be configured to include: a 1-1 comparator 241 for comparing the source signal 310 generated by the first frequency generator 230 and applied to the first resistor 220 with a preset reference signal 340 (V REF and the first-second comparator 242, the phase delay signal 320 after the first resistor element 220 and the reference signal 340 (V REF ) for comparison (first implementation example).

[0058] At this time, by Figure 6a It can be seen that the reference signal 340 can be input to the first comparator 240, wherein the reference signal 340 can be set to an intermediate value between the voltage upper limit value and the voltage lower limit value of the source signal 310 and the phase delay signal 320, but the present invention is not limited thereto.

[0059] In this regard, Figure 7 The waveform in the first implementation example is shown in FIG. Figure 7 It can be seen that the source signal 310 and the reference signal 340 can be compared in the 1-1 comparator 241 to determine the first moment ( Figure 7 The phase delay signal 320 and the reference signal 340 can be compared in the first-second comparator 242 to determine the second moment (T1) at which the phase delay signal 320 and the reference signal 340 intersect. Figure 7 T2 in ).

[0060] Therefore, the first control unit 250 can use the difference between the first moment T1 and the second moment T2 to grasp the phase difference between the source signal 310 and the phase delay signal 320 and the corresponding cutoff frequency (fc), thereby calculating the element value of the first reactance element 120.

[0061] In addition, by Figure 6b It can be seen that the first comparator 240 can be constructed to include a 1st-3rd comparator 243, which compares the source signal 310 generated by the first frequency generator 230 and applied to the first resistor element 220 and the phase delayed signal 320 after passing through the first resistor element 220 (second implementation example).

[0062] At this time, the source signal 310 and the phase delay signal 320 can be compared in the 1st-3rd comparator 243 to output a phase comparison signal 330, and the phase delay in the phase delay signal 320 can be calculated using the phase comparison signal 330 in the first control unit 250.

[0063] As a more detailed example, Figures 8a to 8d The second implementation example is shown in: a source signal 310 generated in the first frequency generator 230 and applied to the first resistor element 220; a phase delay signal 320 after passing through the first resistor element 220; and a phase comparison signal 330 output by inputting the source signal 310 and the phase delay signal 320 into the first comparator 240.

[0064] Depend on Figures 8a to 8d It can be seen that the phase comparison signal 330 has a waveform of a high (HIGH) or low (LOW) signal based on the time point when the phases of the source signal 310 and the phase delay signal 320 intersect.

[0065] The moment (phase) when the value of the phase comparison signal 330 changes corresponds to the phase difference between the source signal 310 and the phase delay signal 320. The one-to-one correspondence between the two variables can be pre-stored in the form of a mathematical formula or a lookup table. The first control unit 250 can use the one-to-one correspondence between the two variables pre-stored to obtain the phase difference between the source signal 310 and the phase delay signal 320 corresponding to the moment when the comparator output changes.

[0066] Therefore, in the first control unit 250, the phase comparison signal 330 output by the first comparator 240 can be used as a reference to measure the phase delay degree of the phase delay signal 320 generated as the frequency increases to grasp the cutoff frequency (fc), thereby calculating the element value of the first reactance element 120.

[0067] In addition, although Figures 8a to 8d FIG. 2 shows a case where the cutoff frequency (fc) of the circuit is grasped based on the phase delay between the source signal 310 and the phase delay signal 320, and the element value of the first reactance element 120 is calculated using the cutoff frequency. However, the present invention is not limited to this. The signal sizes at both ends of the first resistor element 220 can be compared in the first comparator 240 to measure the attenuation degree caused by the increase in frequency, and the cutoff frequency (fc) of the circuit is grasped based on the attenuation degree in the first control unit 250 and the element value of the first reactance element 120 is calculated.

[0068] Furthermore, in the present invention, the first control unit 250 measures whether the magnitude change of the signal at both ends of the first resistor 220 deviates from the second frequency (=f C2 ), and using the second frequency (=f C2) to verify the first frequency (=f C1 ) is accurate. Through this process, the error of the cutoff frequency can be prevented, thereby more accurately calculating the element value of the first reactance element 120.

[0069] In addition, the first comparator 240 is described above in the first implementation example ( Figure 6a ) and the second implementation example ( Figure 6b ) is used as an example, but the present invention is not limited to this. In addition, the first comparator 240 can also be implemented with a variety of structures that can grasp the phase difference between the source signal 310 and the phase delay signal 320.

[0070] Thus, in the connection determination step ( S130 ), the second device 200 determines whether the first connection terminal 110 of the first device 100 is connected to the second connection terminal 210 using the signal comparison result across the first resistor 220 .

[0071] More specifically, the first control unit 250 determines that the phase delay of the signal at both ends of the first resistor 220 deviates from the first frequency (=f C1 ) and then, using the first frequency (=f C1 ) is used to calculate the element value of the first reactance element 120, thereby being able to determine whether the first connection terminal 110 of the first device 100 is connected to the second connection terminal 210.

[0072] Furthermore, the first control unit 250 can identify the first device 100 using the calculated element value of the first reactance element 120, determine whether the first device 100 is an attachment-permitted device, and decide whether to permit the connection.

[0073] In addition, in the present invention, the first connecting terminal 110 can have a 1-3 contact 113, and the second connecting terminal 210 can have a 2-3 contact 213 corresponding to the 1-3 contact 113. At this time, after the first control unit 250 detects that the first connecting terminal 110 and the second connecting terminal 210 are connected, it can be controlled to apply power to the first device 100 through the 2-3 contact 213.

[0074] As a more specific example, when the calculated element value of the first reactance element 120 is 47uF, the first control unit 250 determines that a camera device is attached, thereby supplying a first power supply for driving the camera device and transmitting a control signal for the camera device.

[0075] Alternatively, when the calculated element value of the first reactance element 120 is 10 uF, the first control unit 250 may determine that a display module device is attached, thereby supplying a second power supply for driving the display module device and transmitting a control signal for the display module device.

[0076] On the contrary, when the calculated element value of the first reactance element 120 is 100 nF, the first control unit 250 may determine that an unknown device has been attached, and thus not supply power to the device but interrupt it.

[0077] Furthermore, in a connection detection system, device and method according to an embodiment of the present invention, Fig. 9 It can be seen that the first device 100 can include: a third connection terminal 190 having a 3-1 contact 191 and a 3-2 contact 192; a second resistor 140; a second frequency generator 150, which applies a signal whose frequency changes within a predetermined range to a third device (not shown) via the second resistor 140 through the third connection terminal 190; a second comparator 160, two input terminals of which are connected to both ends of the second resistor 140, and which compares and outputs the signals at both ends of the second resistor 140; and a second control unit 170, which uses the output signal of the second comparator 160 to determine whether the fourth connection terminal (not shown) of the third device is connected to the third connection terminal 190. The second power on / off device 180 has an on / off function and supplies power to the third device.

[0078] In addition, the third connecting terminal 190 may be provided with a 3-3 contact 193, and the fourth connecting terminal (not shown) may be provided with a 4-3 contact (not shown) corresponding to the 3-3 contact 193, whereby, after the second control unit 170 detects that the third connecting terminal 190 and the fourth connecting terminal are connected, it is possible to control the third device (not shown) to be powered through the 3-3 contact 193.

[0079] Therefore, in the connection detection system, device and method involved in one embodiment of the present invention, when the first device 100 attached to the second device 200 is also attached to the third device (not shown), it is possible to detect in the second control unit 170 of the first device 100 whether the third device is attached, and then decide whether to supply power to the third device and transmit control signals, etc.

[0080] Furthermore, the second control unit 170 may transmit information on the connection state of the third device to the second device 200, and the second device 200 may perform processing on power supply and control signal transmission taking into account both the first device 100 and the third device.

[0081] Furthermore, in the connection detection system, device and method involved in one embodiment of the present invention, it can also be implemented as a structure in which multiple devices are attached in sequence, such as detecting whether the fourth device (not shown) is attached in the third device, and implementing power supply to the fourth device and transmission of control signals.

[0082] In addition, Fig.10 Detailed sequence diagram of a connection detection method according to an embodiment of the present invention is shown in FIG.

[0083] Depend on Fig.10 It can be seen that first, in step S210 , the second device 200 generates a signal whose frequency varies within a predetermined range by the first frequency generator 230 , and outputs the signal to the first resistor 220 .

[0084] In this case, a circuit is formed in which the signal generated by the first frequency generator 230 passes through the first resistor 220 and the first reactance element 120 such as a capacitor included in the first device 100 .

[0085] Next, in step S220 , the first comparator 240 of the second device 200 compares the phase delays of the signal generated by the first frequency generator 230 and the signal caused by the first reactance element 120 such as the capacitor.

[0086] Therefore, in step S230, after the phase delay caused by the frequency change of the signal is measured in the first control unit 250 of the second device 200 and the capacitance value of the first reactance element 120 is calculated, the calculated capacitance value of the first reactance element 120 is used as a reference to determine whether the first device 100 such as a slave device is attached.

[0087] At this time, in the first control unit 250, when it is determined that the first device 100 is attached because the calculated capacitance value is appropriate, power is applied to the first device 100 to drive the first device 100, and when it is determined that the first device 100 is not attached because the calculated capacitance value is inappropriate, the power supply to the first device 100 is blocked.

[0088] In addition, Fig.11 2 is a block diagram of a connection detection device 200 according to an embodiment of the present invention.

[0089] Depend on Fig.11 It can be seen that the connection detection device 200 according to an embodiment of the present invention may be configured to include: a second connection terminal 210 , a first resistor 220 , a first frequency generator 230 , a first comparator 240 , and a first control unit 250 .

[0090] Next, the connection detection device 200 according to one embodiment of the present invention will be described according to each component. In addition, a more detailed description of the connection detection device 200 according to one embodiment of the present invention can be obtained by referring to the above description. Figures 1 to 10 The connection detection system 10 and method according to one embodiment of the present invention are implemented in a variety of similar embodiments, so detailed description is omitted.

[0091] First, the connection detection device 200 is a connection detection device 200 for detecting whether the first device 100 including the first connection terminal 110 having the 1-1 contact 111 and the 1-2 contact 112 and the first reactance element 120 connected to the first connection terminal 110 is connected, and includes the second connection terminal 210 including the 2-1 contact 211 and the 2-2 contact 212 corresponding to the 1-1 contact 111 and the 1-2 contact 112, and the first resistor element 220.

[0092] At this time, the first frequency generator 230 applies a signal whose frequency changes within a predetermined range to the first device 100 via the first resistor 220 through the second connection terminal 210 .

[0093] In addition, two input terminals of the first comparator 240 are connected to both ends of the first resistor 220 , so that the signals at both ends of the first resistor 220 are compared and output.

[0094] Furthermore, the first control unit 250 determines whether the first connection terminal 110 of the first device 100 is connected to the second connection terminal 210 using the output signal of the first comparator 240 .

[0095] In addition, the first comparator 240 may be a phase comparator for comparing the phases of the signals at both ends of the first resistor element 220. In this case, the first control unit 250 may use the output signal of the phase comparator to determine whether the phase delay of the signals at both ends of the first resistor element 220 deviates from the first frequency (=f C1 ), and using the first frequency (=f C1) is used to calculate the element value of the first reactance element 120, thereby determining whether the first connection terminal 110 of the first device 100 is connected to the second connection terminal 210.

[0096] In addition, the first control unit 250 can detect whether the magnitude change of the signal at both ends of the first resistor 220 deviates from the second frequency (=f C2 ), and using the second frequency (=f C2 ) to verify the first frequency (=f C1 ) is accurate.

[0097] In addition, the first connecting terminal 110 may have a 1-3 contact 113, and the second connecting terminal 210 may have a 2-3 contact 213 corresponding to the 1-3 contact 113, thereby, after the first control unit 250 detects that the first connecting terminal 110 and the second connecting terminal 210 are connected, it is possible to control the first device 100 to be powered by the 2-3 contact 213.

[0098] In addition, in the first frequency generator 230, the first frequency (=f C1 ) The signal is applied while changing the frequency within a limited range based on the predicted value.

[0099] Therefore, in the connection detection system, device and method involved in one embodiment of the present invention, when the first device 100 is attached to the second device 200, it is possible to accurately detect in the second device 200 whether the first device 100 is attached, so that the power and signals required for the operation of the first device 100 can be stably supplied, and the attached first device 100 can be identified in the second device 200, so that the connection is allowed only for the first device 100 that is allowed to attach.

[0100] The above is merely an exemplary description of the technical concept of the present invention. As long as one is skilled in the art, various modifications and variations can be made without departing from the essential characteristics of the present invention. Therefore, the embodiments described in the present invention are intended to illustrate the technical concept of the present invention rather than to limit it, and are not limited to these embodiments. The protection scope of the present invention should be interpreted by the scope of the attached claims, and all technical concepts within the equivalent scope should be interpreted as being included in the scope of the present invention.

Claims

1. A connection detection system, characterized in that: The device comprises a first device and a second device, The first device comprises: A first connecting terminal having a 1-1 contact and a 1-2 contact; and a first reactance element connected to the first connection terminal; The second device comprises: A second connection terminal including a 2-1 contact and a 2-2 contact corresponding to the 1-1 contact and the 1-2 contact; a first resistance element; a first frequency generator for applying a signal having a frequency changed within a predetermined range to the first device via the first resistor element and through the second connection terminal; a first comparator, the two input terminals of which are connected to the two terminals of the first resistor element, and the signals at the two terminals of the first resistor element are compared and then output; as well as The first control unit determines whether the first connection terminal of the first device is connected to the second connection terminal using an output signal of the first comparator.

2. The connection detection system according to claim 1, characterized in that: The first comparator is a phase comparator that compares the phases of signals at both ends of the first resistor element. In the first control unit, The output signal of the phase comparator is used to detect whether the phase delay of the signal at both ends of the first resistor element deviates from the first frequency f within a predetermined range as the frequency of the first frequency generator increases. C1 ,and Using the first frequency f C1 An element value of the first reactance element is calculated to determine whether the first connection terminal of the first device is connected to the second connection terminal.

3. The connection detection system according to claim 2, characterized in that: In the first control unit, It is understood that the magnitude change of the signal at both ends of the first resistor element deviates from the second frequency f within a predetermined range as the frequency of the first frequency generator increases. C2 ,and Using the second frequency f C2 To verify the first frequency f C1 Is it accurate.

4. The connection detection system according to claim 1, characterized in that: The first connecting terminal has first to third contacts, The second connection terminal includes a second-third contact corresponding to the first-third contact. After the first control unit detects that the first connection terminal and the second connection terminal are connected, the first control unit controls to apply power to the first device through the second-third contact.

5. The connection detection system according to claim 2, characterized in that: In the first frequency generator, while the first frequency f C1 The signal is applied while changing the frequency within a limited range based on the predicted value.

6. The connection detection system according to claim 1, characterized in that: The first device comprises: A third connecting terminal having a 3-1 contact and a 3-2 contact; a second resistance element; a second frequency generator for applying a signal having a frequency changed within a predetermined range to a third device via the second resistor element and through the third connection terminal; a second comparator, the two input terminals of which are connected to the two terminals of the second resistor element, and the signals at the two terminals of the second resistor element are compared and then output; as well as The second control unit determines whether the fourth connection terminal of the third device is connected to the third connection terminal using the output signal of the second comparator.

7. The connection detection system according to claim 6, characterized in that: The third connecting terminal has a 3-3 contact, The fourth connection terminal includes a 4-3 contact corresponding to the 3-3 contact, After the second control unit detects that the third connection terminal and the fourth connection terminal are connected, the second control unit controls to apply power to the third device through the 3-3 contact.

8. A connection detection device for detecting whether or not a connection is made to a first device, the first device comprising: a first connection terminal having a 1-1 contact and a 1-2 contact; and a first reactance element connected to the first connection terminal, It is characterized in that The connection detection device is composed of: A second connection terminal including a 2-1 contact and a 2-2 contact corresponding to the 1-1 contact and the 1-2 contact; a first resistance element; a first frequency generator for applying a signal having a frequency changed within a predetermined range to the first device via the first resistor element and through the second connection terminal; a first comparator having two input terminals connected to both ends of the first resistor element, and comparing and outputting signals at both ends of the first resistor element; and The first control unit determines whether the first connection terminal of the first device is connected to the second connection terminal using an output signal of the first comparator.

9. A connection detection method for detecting whether a second device is connected to a first device, the first device comprising: a first connection terminal having a 1-1 contact and a 1-2 contact; and a first reactance element connected to the first connection terminal, It is characterized in that The connection detection method comprises: a signal applying step, wherein the second device generates a signal whose frequency changes within a predetermined range, and applies the signal to the first device via the first resistor and through a second connecting terminal, wherein the second connecting terminal has a 2-1 contact and a 2-2 contact corresponding to the 1-1 contact and the 1-2 contact; a signal comparison step, wherein the second device compares signals at both ends of the first resistor element; and In the connection determination step, the second device determines whether the first connection terminal of the first device is connected to the second connection terminal using a result of comparing signals at both ends of the first resistor.

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