CN117596680A - Communication unit, communication device, apparatus, lighting fixture, and communication system - Google Patents
Communication unit, communication device, apparatus, lighting fixture, and communication system Download PDFInfo
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- CN117596680A CN117596680A CN202310989307.8A CN202310989307A CN117596680A CN 117596680 A CN117596680 A CN 117596680A CN 202310989307 A CN202310989307 A CN 202310989307A CN 117596680 A CN117596680 A CN 117596680A
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- 238000004891 communication Methods 0.000 title claims abstract description 324
- 239000000758 substrate Substances 0.000 claims description 46
- 239000004020 conductor Substances 0.000 claims description 32
- 238000005476 soldering Methods 0.000 claims description 7
- 229910000679 solder Inorganic materials 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005286 illumination Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000005404 monopole Effects 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
Abstract
Provided are a communication unit, a communication device, a lighting fixture, and a communication system, wherein the function of an internal antenna can be replaced by an external antenna. A communication unit (1) is provided with: a communication module (11) having a built-in antenna (111) and a communication circuit (112) for performing wireless communication; and an external antenna (12) which is configured independently of the communication module (11). The external antenna (12) and the internal antenna (111) support the same frequency band. The external antenna (12) is electrically connected to the communication circuit (112). The communication circuit (112) performs wireless communication using an external antenna (12) without using an internal antenna (111).
Description
Technical Field
The present disclosure relates to a communication unit, a communication device, an apparatus, a lighting fixture, and a communication system.
Background
The communication device of patent document 1 (japanese patent application laid-open No. 2007-103987) includes a first antenna and a second antenna. The first antenna is an antenna for transmitting and receiving a radio wave signal supporting a WAN (Wide Area Network: wide area network), and is built in a main body of the communication device. The second antenna is an antenna for transmitting and receiving radio wave signals supporting a wireless LAN (Local Area Network: local area network) or PAN (Personal Area Network: personal area network), and is connected to the main body of the communication device via a connection cable. The frequency band in which wireless communication can be performed using the second antenna is higher than the frequency band in which wireless communication can be performed using the first antenna. That is, in the communication device of patent document 1, the frequency band of the first antenna and the frequency band of the second antenna are different from each other.
Disclosure of Invention
Problems to be solved by the invention
A communication device (communication unit) as disclosed in patent document 1 includes a first antenna (internal antenna) and a second antenna (external antenna). However, the frequency band of the first antenna and the frequency band of the second antenna are different from each other. That is, the function of the first antenna cannot be replaced by the second antenna.
The present disclosure aims to provide a communication unit, a communication device, an apparatus, a lighting fixture, and a communication system that enable an external antenna to replace the function of an internal antenna.
Solution for solving the problem
A communication unit according to an embodiment of the present disclosure includes: a communication module having a built-in antenna and a communication circuit for performing wireless communication; and an external antenna configured independently of the communication module. The external antenna and the internal antenna support the same frequency band. The external antenna is electrically connected with the communication circuit. The communication circuit uses the external antenna instead of the internal antenna to perform the wireless communication.
A communication device according to an embodiment of the present disclosure includes: the communication unit described above; and a unit substrate provided with the communication unit.
An apparatus according to an embodiment of the present disclosure includes: the communication device described above; and a housing for housing the communication device.
A lighting device according to an embodiment of the present disclosure includes: the communication device described above; and a housing for housing the communication device.
A communication system according to an aspect of the present disclosure includes a plurality of the above-described devices, and the communication units included in the plurality of the devices perform the wireless communication with each other.
ADVANTAGEOUS EFFECTS OF INVENTION
As described above, the present disclosure has an effect of enabling the external antenna to replace the internal antenna.
Drawings
Fig. 1 is a block diagram showing a communication apparatus having a communication unit of an embodiment.
Fig. 2 is a plan view showing the communication device described above.
Fig. 3 is a perspective view showing a communication module included in the communication unit.
Fig. 4 is a graph showing an example of the frequency characteristics of each VSWR of the external antenna and the internal antenna of the communication unit.
Fig. 5 is a perspective view showing an apparatus provided with the communication device described above.
Fig. 6 is a perspective view showing a lighting fixture including the communication device.
Fig. 7 is a schematic diagram showing a communication system using the communication unit described above.
Detailed Description
In general, the following embodiments relate to a communication unit, a communication device, an apparatus, a lighting fixture, and a communication system. More specifically, the present invention relates to a communication unit, a communication device, an apparatus, a lighting fixture, and a communication system that perform wireless communication.
The communication unit, the communication device, the apparatus, the lighting fixture, and the communication system according to the embodiments are described in detail below with reference to the drawings. However, each of the drawings described in the following embodiments is a schematic drawing, and the ratio of the size and thickness of each component does not necessarily reflect the actual dimensional ratio. The configuration described in the following embodiment is merely an example of the present disclosure. The present disclosure is not limited to the following embodiments, and various modifications can be made according to designs and the like as long as the effects of the present disclosure can be achieved.
(1) Summary of communication units
In general, a communication module integrally provided with a built-in antenna and a communication circuit is sometimes used in a communication unit for performing wireless communication. However, the built-in antenna provided in the communication module may not meet the performance of the antenna required for the communication unit due to design restrictions such as the size and cost of the communication module itself.
In addition, the communication unit is embedded in various devices to be used. Specifically, the communication unit is housed in a housing of the device or a cradle attached to the device, and is used in various installation environments. However, the setting environment affects the performance of an antenna for receiving and transmitting radio waves for wireless communication. For example, when a communication unit using a communication module is embedded in a device, the range of frequencies in which wireless communication is possible may become narrower than the range of frequencies in which wireless communication is possible by the communication module alone, and the reliability of wireless communication may be degraded.
In this way, when the communication unit is configured using the communication module, the performance required for wireless communication by the communication unit may not be satisfied by the internal antenna of the communication module.
Therefore, the communication unit 1 of the present embodiment has the structure shown in fig. 1.
The communication unit 1 includes a communication module 11 and an external antenna 12. The communication module 11 has a built-in antenna 111 and a communication circuit 112. The communication circuit 112 performs wireless communication via an antenna. The external antenna 12 is configured independently of the communication module 11. The external antenna 12 and the internal antenna 111 support the same frequency band. The external antenna 12 is electrically connected to the communication circuit 112. The communication circuit 112 performs wireless communication using the external antenna 12 instead of the internal antenna 111.
The communication unit 1 having the above-described configuration can replace the function of the internal antenna 111 with the external antenna 12.
Since the external antenna 12 is configured independently of the communication module 11, design restrictions are relaxed compared to those of the internal antenna 111. That is, the performance of the external antenna 12 is easily set to be higher than that of the internal antenna 111. Thus, even in the case where the internal antenna 111 of the communication module 11 does not satisfy the performance required for the wireless communication of the communication unit 1, the communication unit 1 can satisfy the performance required for the wireless communication of the communication unit 1 by performing the wireless communication using the external antenna 12.
Further, since the communication unit 1 includes the external antenna 12 configured independently of the communication module 11, it is possible to ensure a degree of freedom in arrangement when the communication unit 1 is incorporated into a device.
(2) Details of the communication unit and the communication device
As an example of the actual use, the communication unit 1 is used in the communication device 10 of fig. 2. The communication device 10 includes a communication unit 1 and a unit substrate 2. The communication unit 1 is provided on the unit substrate 2. The communication unit 1 includes a communication module 11 and an external antenna 12.
(2.1) Unit substrate
The unit substrate 2 is a printed circuit board, for example, a double-sided substrate or a multilayer substrate. A wiring of a film-like conductor is arranged on the unit substrate 2, and the wiring of the conductor electrically connects the respective sections.
The communication unit 1 is provided on the unit substrate 2. Specifically, the communication module 11 is mounted on the unit substrate 2, and an external Antenna 12 as a carrier Antenna (Pattern Antenna) is formed on the unit substrate 2.
A connector 22 is also mounted on the unit substrate 2. The connector 22 is connected to the external device 9 via a cable. The external device 9 includes a power supply device that supplies driving power to the communication unit 1 and a computer system that controls wireless communication of the communication unit 1. The communication unit 1 is operated by being supplied with driving power from the external device 9 via the connector 22 of the unit substrate 2. In addition, the communication unit 1 outputs data of the reception signal to the external device 9 via the connector 22. The communication unit 1 may receive data of the transmission signal from the external device 9 via the connector 22.
(2.2) communication unit
(2.2.1) communication Module
The communication module 11 includes a built-in antenna 111 and a communication circuit 112. As shown in fig. 3, the communication module 11 further includes a rectangular plate-shaped module substrate 113. The module substrate 113 includes a mounting surface 114 and a solder surface 115 facing each other in the thickness direction. The built-in antenna 111 and the communication circuit 112 are mounted on the mounting surface 114 of the module substrate 113 by soldering. That is, the internal antenna 111, the communication circuit 112, and the internal antenna 111 and the communication circuit 112 among the external antennas 12 are provided on the module substrate 113, and the external antennas 12 are not provided.
The built-in Antenna 111 is a Chip Antenna (Chip Antenna). The internal antenna 111 is electrically connected to a wiring W1 formed on the module substrate 113.
The communication circuit 112 is a wireless communication IC (Integrated Circuit: integrated circuit) and has a function of performing wireless communication. Preferably, the wireless communication is wireless communication conforming to a standard such as Bluetooth (registered trademark), bluetooth low energy (Bluetooth low energy), wi-Fi (registered trademark), zigBee (ZigBee, registered trademark), or low power wireless (specific low power wireless) without a certificate.
In the present embodiment, it is preferable that the data transmitted and received by wireless communication is time-division data. In this case, the communication circuit 112 performs time division multiplexing (TDM: time division multiplexing) communication. In time division multiplexing communication, time division data obtained by dividing one communication frame into a plurality of time slots and storing different data for each time slot is used.
Pads P1 and P2 shown in fig. 2 are formed on the solder surface 115 (see fig. 3) of the module substrate 113. The pad P1 is electrically connected to the internal antenna 111 via a wiring W1 formed on the module substrate 113. The pad P2 is electrically connected to the communication circuit 112 via a wiring W2 formed on the module substrate 113. That is, the internal antenna 111 is electrically connected to the pad P1 of the pads P1 and P2. The communication circuit 112 is electrically connected to the pad P2 of the pads P1 and P2. The module substrate 113 is mounted on the unit substrate 2 such that the solder surface 115 faces the unit substrate 2. The pad P2 of the solder surface 115 is electrically connected to the wiring 21 formed on the unit substrate 2 by soldering. The pad P1 corresponds to a first conductor portion electrically connected to the internal antenna 111. The pad P2 corresponds to a second conductor portion (conductor portion) electrically connected to the communication circuit 112.
No wiring for electrically connecting the pad P1 and the pad P2 is formed on the module substrate 113. That is, the communication module 11 itself does not have a structure for electrically connecting the built-in antenna 111 and the communication circuit 112. Therefore, if the communication circuit 112 is to perform wireless communication using the internal antenna 111, it is necessary to electrically connect the pad P1 and the pad P2 by soldering or the like. However, in the present embodiment, the pads P1 and P2 are not electrically connected, and thus the communication circuit 112 does not perform wireless communication using the internal antenna 111.
(2.2.2) external antenna
The external antenna 12 is a carrier antenna formed on the unit substrate 2. That is, the external antenna 12 is formed of a film-like conductor formed on the unit substrate 2, and can be thinned. The external antenna 12 is electrically connected to the wiring 21 of the unit substrate 2. The wiring 21 is electrically connected to the pad P2 formed on the module substrate 113 of the communication module 11 by soldering. That is, the external antenna 12 is electrically connected to the pad P2. Specifically, the external antenna 12 is electrically connected to the communication circuit 112 via the wiring 21, the pad P2, and the wiring W2.
In this way, the external antenna 12 is electrically connected to the pad P2 by soldering. As a result, the communication unit 1 can shorten the distance between the external antenna 12 and the communication circuit 112, and can achieve simplification of the structure, compared to a structure in which the external antenna 12 and the module substrate 113 are connected using a coaxial connector or the like.
It is preferable that the external antenna 12 is a monopole antenna, and the antenna length of the external antenna 12 is 1/4 or more of the wavelength of radio waves used for wireless communication. In this case, the external antenna 12 can be miniaturized and the external antenna 12 can be widened.
(2.2.3) Wireless communication
As described above, in the communication unit 1, the communication circuit 112 is electrically connected to the external antenna 12 via the wiring W2, the pad P2, and the wiring 21. In addition, the communication circuit 112 is not electrically connected to the internal antenna 111. Thus, the communication circuit 112 performs wireless communication using the external antenna 12 instead of the internal antenna 111.
The internal antenna 111 has difficulty in improving the performance of the antenna due to design restrictions such as the size and cost of the communication module 11.
On the other hand, the limitation in design of the external antenna 12 is relaxed as compared with the internal antenna 111, and therefore, the performance of the antenna is easily improved. Accordingly, in the communication unit 1, the external antenna 12 and the internal antenna 111 are made to support the same frequency band, and the range of frequencies in which wireless communication can be performed using the external antenna 12 is set to be wider than the range of frequencies in which wireless communication can be performed using the internal antenna 111. Further, it is preferable that the frequency characteristic of the external antenna 12 and the frequency characteristic of the internal antenna 111 have the same center frequency. In other words, it is preferable that the center frequency of the frequency characteristic of the external antenna 12 is the same as the center frequency of the frequency characteristic of the internal antenna 111. Here, the term "two frequencies are identical" includes not only a state where the two frequencies are completely identical but also a state where the two frequencies are deviated but the influence of the deviation of the two frequencies can be ignored in performing wireless communication.
The frequency band is a range of frequencies used for wireless communication by the communication circuit 112, and is defined by, for example, a standard or specification of wireless communication by the communication circuit 112. Specifically, the frequency bands used by the communication unit 1 in wireless communication include a 2.4GHz band, a 5GHz band, and the like.
The frequency band may be allocated according to rules of international institutions and laws of various countries. The rules of the International organization are the radio rules (RR: radio Regulations) of the International telecommunication Union (ITU: international Telecommunication Union), and the like. In japan, the frequency band is allocated by radio wave method.
Fig. 4 shows an example of the frequency characteristics of each VSWR (Voltage Standing Wave Ratio: voltage standing wave ratio) of the external antenna 12 and the internal antenna 111. In fig. 4, VSWR characteristic Y1 is the frequency characteristic of the VSWR of the external antenna 12, and VSWR characteristic Y2 is the frequency characteristic of the VSWR of the internal antenna 111. In the VSWR characteristics Y1 and Y2, the frequency at which each VSWR of the external antenna 12 and the internal antenna 111 is minimized is fc. The frequency fc is a center frequency of the frequency characteristic of the external antenna 12 and a center frequency of the frequency characteristic of the internal antenna 111, and corresponds to a center of a frequency range in which wireless communication is possible using the external antenna 12 and a center of a frequency range in which wireless communication is possible using the internal antenna 111. When the frequency range in which the VSWR in the VSWR characteristic Y1 of the external antenna 12 is equal to or smaller than the predetermined value K1 is defined as Δf1, and the frequency range in which the VSWR in the VSWR characteristic Y2 of the internal antenna 111 is equal to or smaller than the predetermined value K1 is defined as Δf2, Δf1> Δf2. That is, the frequency range Δf1 in which wireless communication can be performed using the external antenna 12 is wider than the frequency range Δf2 in which wireless communication can be performed using the internal antenna 111. The predetermined value K1 is a value determined by a standard, a specification, or the like of wireless communication performed by the communication circuit 112, and the wider the frequency range in which VSWR is equal to or smaller than the predetermined value K1, the higher the performance of the antenna.
Thus, the communication unit 1 and the communication device 10 provided with the communication unit 1 can improve the reliability of wireless communication by using the external antenna 12 instead of the internal antenna 111.
Further, since the frequency range Δf1 of the external antenna 12 is wider than the frequency range Δf2 of the internal antenna 111, even if the frequency range Δf1 is narrowed according to the installation environment, there is a high possibility that the performance required for wireless communication by the communication unit 1 is satisfied.
For example, the external antenna 12 and the internal antenna 111 are provided to support wireless communication in the 2.4GHz band, which is a frequency band, and the communication unit 1 performs wireless communication in the 2.4GHz band which complies with the bluetooth standard. In this case, the VSWR is required to be about 3 or less in the frequency range of 2.402GHz to 2.480 GHz. Accordingly, the communication unit 1 configures the external antenna 12 such that the frequency range Δf1 when the predetermined value K1 in fig. 4 is set to 3 includes 2.402GHz to 2.480 GHz. In this case, it is preferable that the external antenna 12 is configured such that the frequency range Δf1 of the external antenna 12 in the communication unit 1 alone or the communication device 10 alone has a margin as much as possible with respect to the frequency range of 2.402GHz to 2.480 GHz.
(3) Apparatus and lighting fixture
The apparatus 3 shown in fig. 5 includes the communication device 10 and a housing 31 for housing the communication device 10. The device 3 is, for example, a lighting fixture, an air conditioning device, a sensor device, a power supply device, a power conversion device, or the like. The communication means 10 of the device 3 communicates wirelessly with the communication means 10 of the other devices 3. For example, the communication apparatus 10 transmits a monitor signal for notifying the state of the device 3 and a control signal for controlling the other device 3, or receives the control signal and the monitor signal from the other device 3. The device 3 is able to act on the basis of the received control signal.
As an example of the device 3, a lighting fixture 3A of fig. 6 is shown. The lighting fixture 3A includes a light source unit 32 and a housing 31A for supporting the light source unit 32.
The light source unit 32 has a long box-shaped housing, and houses a long substrate and a plurality of LEDs (Light Emitting Diode: light emitting diodes) mounted on the substrate in a longitudinal direction in the housing. The housing 31A is long, and the light source unit 32 is mounted on the lower surface of the housing 31A. The housing 31A accommodates the communication device 10 therein. The case 31A includes a pair of reflection plates 33 protruding obliquely upward from both side edges of the light source unit 32 in the longitudinal direction.
The communication device 10 of the lighting fixture 3A performs wireless communication with the communication devices 10 of the other lighting fixtures 3A. Thus, the lighting fixture 3A can adjust the illumination light emitted from the light source unit 32 in conjunction with other lighting fixtures 3A. That is, mode control and group control of illumination light using a plurality of illumination devices 3A can be performed.
(4) Communication system
Fig. 7 shows the structure of the communication system 100. The communication system 100 includes a plurality of devices 3. Each of the plurality of devices 3 includes a communication apparatus 10. The communication devices 10 of the plurality of apparatuses 3 form a mesh network, and perform wireless communication with the communication devices 10 of the other apparatuses 3. For example, the communication apparatus 10 transmits a monitor signal for notifying the state of the device 3 and a control signal for controlling the other device 3, or receives the control signal and the monitor signal from the other device 3. The device 3 is able to act on the basis of the received control signal.
The communication device 10 of each of the plurality of apparatuses 3 may perform wireless communication with a controller serving as a master. In this case, the plurality of devices 3 are centrally controlled by the controller.
(5) Modification examples
The external antenna 12 may be an antenna other than a carrier plate antenna, and may be any of a monopole antenna, a dipole antenna, an array antenna, and the like.
The communication unit 1 (see fig. 1 and 2) is not limited to the configuration in which the communication module 11 and the external antenna 12 are mounted on the common unit substrate 2. For example, the communication module 11 and the external antenna 12 may be provided on separate substrates and electrically connected to each other via a cable or the like.
The lighting fixture including the communication device 10 is not limited to the lighting fixture 3A shown in fig. 6, and may be, for example, a down lamp, a spotlight, or the like.
(6) Summary
The communication unit (1) according to claim 1 of the present embodiment includes: a communication module (11) having a built-in antenna (111) and a communication circuit (112) for performing wireless communication; and an external antenna (12) which is configured independently of the communication module (11). The external antenna (12) and the internal antenna (111) support the same frequency band. The external antenna (12) is electrically connected to the communication circuit (112). The communication circuit (112) performs wireless communication using an external antenna (12) without using an internal antenna (111).
The communication unit (1) can enable an external antenna (12) to replace the function of an internal antenna (111). In addition, even when the internal antenna (111) does not satisfy the performance required for wireless communication, the communication unit (1) can satisfy the performance required for wireless communication by performing wireless communication using the external antenna (12).
With regard to the communication unit (1) of claim 2 according to the embodiment, it is preferable that in claim 1, the range (Δf1) of frequencies in which the external antenna (12) can be used is wider than the range (Δf2) of frequencies in which the internal antenna (111) can be used.
The communication unit (1) can improve the reliability of wireless communication by using an external antenna (12) instead of an internal antenna (111).
With regard to the communication unit (1) of claim 3 according to the embodiment, it is preferable that in claim 1 or claim 2, the frequency characteristic of the external antenna (12) and the frequency characteristic of the internal antenna (111) have the same center frequency (fc).
The communication unit (1) can enable an external antenna (12) to replace the function of an internal antenna (111).
With regard to the communication unit (1) according to the 4 th aspect of the present embodiment, it is preferable that, in any one of the 1 st to 3 rd aspects, the external antenna (12) is a carrier antenna.
The communication unit (1) can be thinned.
With regard to the communication unit (1) according to the 5 th aspect of the present embodiment, it is preferable that in any one of the 1 st aspect to the 4 th aspect, the internal antenna (111) is a chip antenna.
The communication unit (1) can be miniaturized.
In the communication unit (1) according to claim 6 of the present embodiment, it is preferable that in any one of claims 1 to 5, a module board (113) is further provided, and the internal antenna (111) and the communication circuit (112) out of the internal antenna (111), the communication circuit (112), and the external antenna (12) are provided on the module board (113).
The communication unit (1) can use a communication module (11) integrally provided with a built-in antenna (111) and a communication circuit (112).
In the communication unit (1) according to claim 7 of the present embodiment, in claim 6, the first conductor portion (P1) and the second conductor portion (P2) are formed on the module substrate (113). Preferably, the internal antenna (111) is electrically connected to the first conductor (P1) of the first conductor (P1) and the second conductor (P2). Preferably, the communication circuit (112) is electrically connected to the second conductor (P2) of the first conductor (P1) and the second conductor (P2). Preferably, the external antenna (12) is electrically connected to the second conductor portion (P2).
The communication unit (1) can use the external antenna (12) without using the internal antenna (111) by electrically connecting the external antenna (12) and the second conductor part (P2).
With regard to the communication unit (1) according to the 8 th aspect of the present invention, it is preferable that, in any one of the 1 st to 7 th aspects, the data transmitted and received by wireless communication is time-division data.
The communication unit (1) can perform wireless communication for transmitting and receiving time-division data.
The communication device (10) according to claim 9 of the present embodiment includes: the communication unit (1) according to any one of the aspects 1 to 8 is provided with a unit substrate (2) on which the communication unit (1) is provided.
The communication device (10) can enable an external antenna (12) to replace the function of an internal antenna (111). In addition, even when the internal antenna (111) does not satisfy the performance required for wireless communication, the communication device (10) can satisfy the performance required for wireless communication by performing wireless communication using the external antenna (12).
With regard to the communication device (10) according to the 10 th aspect of the embodiment, it is preferable that in the 9 th aspect, the communication unit (1) includes a module substrate (113), and the module substrate (113) includes a conductor portion (P2) electrically connected to the communication circuit (112). The external antenna (12) is electrically connected to the conductor part (P2) by soldering.
The communication device (10) can shorten the distance between the external antenna (12) and the communication circuit (112), and can simplify the structure.
The device (3) according to claim 11 of the present embodiment includes: the communication device (10) according to claim 9 or 10, and a case (31) for housing the communication device (10).
The device (3) can enable the external antenna (12) to replace the function of the internal antenna (111). In addition, even when the internal antenna (111) does not satisfy the performance required for wireless communication, the device (3) can satisfy the performance required for wireless communication by performing wireless communication using the external antenna (12).
The lighting device (3A) according to claim 12 of the present embodiment includes: the communication device (10) according to claim 9 or 10, and a case (31A) for housing the communication device (10).
The lighting device (3A) can enable the external antenna (12) to replace the function of the internal antenna (111). In addition, even when the internal antenna (111) does not satisfy the performance required for wireless communication, the lighting fixture (3A) can satisfy the performance required for wireless communication by performing wireless communication using the external antenna (12).
The communication system (100) according to claim 13 of the present embodiment includes a plurality of devices (3) according to claim 11, and the communication units (1) included in each of the plurality of devices (3) perform wireless communication with each other.
The communication system (100) can enable the external antenna (12) to replace the function of the internal antenna (111). In addition, even when the internal antenna (111) does not satisfy the performance required for wireless communication, the communication system (100) can satisfy the performance required for wireless communication by performing wireless communication using the external antenna (12).
Description of the reference numerals
1: a communication unit; 10: a communication device; 11: a communication module; 12: an external antenna; 100: a communication system; 111: a built-in antenna; 112: a communication circuit; 113: a module substrate; 2: a unit substrate; 3: an apparatus; 3A: a lighting fixture; 31. 31A: a housing; p1: a pad (first conductor portion); p2: a pad (second conductor part, conductor part); fc: a center frequency; Δf1, Δf2: a frequency range.
Claims (13)
1. A communication unit is provided with:
a communication module having a built-in antenna and a communication circuit for performing wireless communication; and
an external antenna configured independently of the communication module,
wherein the external antenna and the internal antenna support the same frequency band,
the external antenna is electrically connected with the communication circuit,
the communication circuit uses the external antenna instead of the internal antenna to perform the wireless communication.
2. The communication unit of claim 1, wherein,
the range of frequencies in which the external antenna can be used is wider than the range of frequencies in which the internal antenna can be used.
3. The communication unit according to claim 1 or 2, wherein,
the frequency characteristic of the external antenna and the frequency characteristic of the internal antenna have the same center frequency.
4. A communication unit according to any one of claims 1 to 3, wherein,
the external antenna is a carrier plate antenna.
5. The communication unit according to any one of claims 1 to 4, wherein,
the built-in antenna is a chip antenna.
6. The communication unit according to any one of claims 1 to 5, wherein,
the portable electronic device further includes a module substrate, wherein the internal antenna and the communication circuit among the internal antenna, the communication circuit, and the external antenna are provided on the module substrate.
7. The communication unit of claim 6, wherein,
a first conductor portion and a second conductor portion are formed on the module substrate,
the internal antenna is electrically connected to the first conductor portion of the first conductor portion and the second conductor portion,
the communication circuit is electrically connected to the second conductor portion of the first conductor portion and the second conductor portion,
the external antenna is electrically connected with the second conductor part.
8. The communication unit according to any one of claims 1 to 7, wherein,
the data transmitted and received by the wireless communication is time division data.
9. A communication device is provided with:
the communication unit according to any one of claims 1 to 8; and
a unit substrate provided with the communication unit.
10. The communication device of claim 9, wherein,
the communication unit includes a module substrate having a conductor portion electrically connected to the communication circuit;
the external antenna is electrically connected to the conductor portion by soldering.
11. An apparatus is provided with:
the communication device according to claim 9 or 10; and
and a housing for housing the communication device.
12. A lighting fixture is provided with:
the communication device according to claim 9 or 10; and
and a housing for housing the communication device.
13. A communication system, wherein,
provided with a plurality of devices according to claim 11,
the communication units included in each of the plurality of devices perform the wireless communication with each other.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2022-128300 | 2022-08-10 | ||
| JP2022128300A JP2024025114A (en) | 2022-08-10 | 2022-08-10 | Communication units, communication devices, equipment, lighting equipment, and communication systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117596680A true CN117596680A (en) | 2024-02-23 |
Family
ID=89915549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310989307.8A Pending CN117596680A (en) | 2022-08-10 | 2023-08-08 | Communication unit, communication device, apparatus, lighting fixture, and communication system |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2024025114A (en) |
| CN (1) | CN117596680A (en) |
-
2022
- 2022-08-10 JP JP2022128300A patent/JP2024025114A/en active Pending
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2023
- 2023-08-08 CN CN202310989307.8A patent/CN117596680A/en active Pending
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| JP2024025114A (en) | 2024-02-26 |
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